Tyco Electronics/LDI
2 Olsen Avenue
Edison, New Jersey 08820 USA
Voice: 732-549-9001
Fax: 732-906-1559
Internet: www.laserdiode.com
E-mail: sales@laserdiode.com
Fiber Optic Business Unit
Laser Diode Incorporated
Airpak
transmitter and receiver modules
The innovative application of high-quality surface mount technology and a unique integration of
optical and electrical components provide performance and quality without the traditional high
cost packaging usually associated with optical modules. The superior reliability engineering on
which the modules are based ensures performance in all normal environments and operating
conditions.
10-4400-0006 Rev. B
The Airpak series laser transmitters and receivers are full function, high performance digital fiber
optic modules. They provide a cost effective interface between standard ECL and PECL logic
families and optical fiber transmission systems.
SONET OC1, OC3 transmitters
SONET OC1, OC3, OC12 receivers
SDH STM-1 transmitters
SDH STM-1, STM-4 receivers
ATM/FDDI
High-loss budget links
Up to 622 Mb/s receivers
Up to 155 Mb/s transmitters
1310nm and 1550nm
PECL or ECL operation
20-Pin multisource pinout
Recommended Transmitter
Bias for ECL Applications
Recommended Transmitter
Bias for PECL Applications
Transmitter Functional Diagram
ECL/PECL
Buffer
Automatic
Power
Control
LBM+ LBM-
Fiber
Pigtail
BFM+ BFM-
DataData
Detector
200
W
10 W
15K W
15K W15K W
15K W
Laser
High-Speed
Driver
...continued
11 10
20 1
Top
View
82 W
82 W
Data
Data
130 W
130 W
0.1 uF
10 uF
-5.2V
Disable
Optical
Aperture
11 10
20 1
Top
View
Disable
82 W
82 W
Data
Data
130 W
130 W
0.1uF
10uF
+5V
Optical
Aperture
Airpak series laser transmitters are designed for
applications up to 155 Mb/s including CCITT SDH and
ANSI SONET standard data rates.
The modules feature single 5 volt supply operation and
a logic interface compatible with either ECL or PECL.
The optical source is a low threshold current, MQW
Fabry-Perot laser coupled with a singlemode fiber. The
fully self-contained module includes all bias and
modulation control circuitry and a disable function to
put the laser in standby mode. High- and low-power
versions are available for short, intermediate, and long-
haul applications. Analog voltage outputs proportional
to the laser current and the optical power are available
for system fault diagnosis. This compact transmitter
complies with industry standard, 20-pin, dual-in-line
footprint.
Functional Description
High-Speed Driver
The high-speed driver modulates the laser above
threshold to maximize speed and minimize pulse-width
distortion. The high-speed drive current is controlled by
a temperature-sensing network that compensates for
the reduction in a laser's power slope at higher
operating temperatures by increasing the drive current.
The result is that a minimum extinction ratio is
maintained over all operating conditions.
Laser Status Section
The laser's back facet monitor network provides an
external differential voltage proportional to the optical
power emitted. This monitor is useful in determining
whether the transmitter is functioning properly when
locating faults along the fiber link.
data rates up to 155 Mb/s
low threshold FP laser
wide operating temperature
1310nm and 1550nm options
automatic power control
transmitter disable
optical power monitor
laser bias monitor
Testing an eye-opening mask
to ensure
CCITT/ANSI compliance. Transmitters
10-4400-0006 Rev. B
Airpaks use high quality
surface mount assembly.
Transmitter Configuration
The laser's bias current is also monitored with a differential voltage
via pins 2 and 4. A variation in this voltage is normal when
operating the module at temperatures other than room
temperature because the automatic control circuit will increase
the bias to maintain constant optical power. Any connection to
the monitor pins should be high-impedance.
Enable/Disable
The disable function turns off the optical output. This feature may
be used in applications where the output power must be off, such
as when the transmitter is in standby mode.
Automatic Power Control
The automatic power control section maintains constant average
power over the operating temperature range. The control also
compensates for normal increases in the laser's operating current
due to normal long-term aging effects.
Design Considerations
Typical connections that the user can implement to interface with
ECL and PECL logic are indicated herein. Good high-frequency
design techniques should be used when laying out a PC board to
ensure optimum signal quality. A ground plane is recommended
with the bypass capacitors and terminating resistors located as
close to the module as possible.
10-4400-0006 Rev. B
Application of Status Alarms
When implementing an external status alarm, a differential
amplifier should be used to convert the differential monitor signal
to a single-ended signal. This signal can then be fed to a simple
comparator to detect a change in operating status. For example,
the laser bias monitor can be used in conjuction with a differential
amplifier and comparator to signal an increase in bias current of 50
percent or more at 25o
C indicating a possible malfunction.
Ø0.31
1.0 meter nominal fiber length
FC Connector
1.20
0.60
0.300
0.150
0.018 0.100 Typ.
0.10
0.40
0.14
Function
Pin Assignments
Pin
1,3,10,20
2
4
5,14
6,8,9,12,18
7
11,13
15
16
17
19
No connection
Laser Bias Monitor +
Laser Bias Monitor -
V
ee
V
cc
Disable
Ground
Data
Data
Back Facet Monitor -
Back Facet Monitor +
Pin 1
Pin 20
Transmitter Specifications and Limits
Optical Characteristics (Performance @ 25oC)
10-4400-0006 Rev. B
Center wavelength
TL 2063
TL 2065
Average output power (over operating temperature range)
TL 2063PT-010, TL 2065PT-010
TL 2063PT-005, TL 2065PT-005
Spectral width (RMS)
Extinction ratio
Tx disable1
nm
dBm
nm
dB
V
1290
1520
-10
-5
-
10
-3.2
-
-
-8
-3
2.5
12
-
1330
1570
-5
0
-
-
0
Units Min Typ Max
Electrical Characteristics (Performance @ 25oC)
Supply voltage (Vcc - Vee)
Supply current
Input data voltage1
Low
High
Bias Monitor
Back facet monitor
V
mA
V
V
V
4.75
-
-
-
0.01
0.01
5.5
130
-
-
0.45
0.2
Units
Min
Typ Max
Absolute Maximum Ratings
Supply voltage
Storage temperature
Operating temperature2
Lead soldering temp/time
V
oC
oC
oC/sec
-
-40
-40
-
-
-
-
-
6
85
85
250/1
Units Min Typ Max
5
70
-1.8
-0.8
-
-
Notes:
1 Measured from Vcc with a 50-ohm load to Vcc -2 volts.
2 Temperature range for 1310nm transmitters only.
Transmitter Ordering Information
TL 2063PT-010FC
TL 2063PT-005FC
TL 2065PT-010FC
TL 2065PT-005FC
Part Number
Data Rate
(NRZ Mb/s)
Nominal
Wavelength (nm)
Typical PAVG
(dBm)
Interface
Type
Operating
Temperature (oC)
155
155
155
155
1310
1310
1550
1550
- 8
- 3
- 8
- 3
9/125/900 um pigtail, FC/PC connector
9/125/900 um pigtail, FC/PC connector
9/125/900 um pigtail, FC/PC connector
9/125/900 um pigtail, FC/PC connector
- 40 to +85
- 40 to +85
- 40 to +65
- 40 to +65
Note:
FC/PC connectors on the fiber pigtail are standard.
Other connector types are available.
Receiver Functional Diagram
Recommended Receiver
Bias for PECL Applications
Recommended Receiver Bias for ECL Applications
data rates of 52, 155, 622 Mb/s
1310nm and 1550nm operation
single 5-volt capable
high sensitivity
high overload power
wide dynamic range
differential data and flag outputs
11 10
20 1
Top
View
82 W
82 W
Data
Data
130 W130 W
0.1 uF
-5V
2.2 uF +
Flag
510 W
Flag
510 W
+5V
Optical
Aperture
Receivers
2.2 uF +
1.5 uH
11 10
20 1
Top
View
82 W82 W
Data
Data
330 W
130 W
0.1uF
2.2 uF -5.2V
0.1 uF
Flag
510 W
Flag
510 W
+5V
330 W
0.1 uF
0.1 uF
51
W51 W
0.1 uF 0.1 uF
-5.2V
MC1OEL16
0.1 uF
130 W
Optical
Aperture
1.5 uH
Do not use this
element for 622 Mb/s
receiver.
287
3
6
5
4
Ground
Pin 15
Optical
Front-End
Fiber Pigtail
Flag
Flag Circuit
Amplifier and
Quantizer
Flag
Pin 12
Data
Pin 7 Data
Pin 9
Ground or -5V
Pin 10
10-4400-0006 Rev. B
The Airpak series receivers are high-
performance, cost-effective optical modules
optimized for use in SONET and SDH systems.
The wide dyn amic range transimpedanc e
design accepts a maximum optical input power
of 0 dBm with typical sensitivities of -40 dBm at
52 Mb/s, -38 dBm at 155 Mb/s, and -32 dBm at
622 Mb/s. A single +5 volt supply is required
without the need for additional negative
detector bias. However, to use the optical
power-monitor function and to enhance
sensitivity at 622 Mb/s, a negative voltage may
be applied though Pin 10 of the module. Data
outputs are differential PECL compatible. This
compact receiver complies with an industy
standard 20-pin, dual-in-line footprint and has a
multimode fiber pigtail, making it compatible
with both singlemode and multimode systems.
Functional Description
Optical Front-End
The optical front-end consists of an InGaAs
photo-detector coupled to a wide dynamic
range transimpedance amplifier for low noise
and high bandwidth. An internal AGC circuit
allows for input power up to 0 dBm.
Amplifier and Quantizer
The high gain amplifier stage limits large-
amplitude signals to maintain wide dynamic
range. The quantizer section provides PECL
output levels to the data and flag outputs for
52 Mb/s and 155 Mb/s products. Data outputs
are also PECL for the 622 Mb/s version, but the
flags are TTL. This is compliant with the
multisource standard. 
Pin 14
Receiver Configuration
Data Outputs
Data outputs are differential PECL (Positive or
Pseudo-ECL). The recommended
terminations are shown herein. It is
suggested that differential outputs be used
for connecting to other logic families to
eliminate possible noise margin problems,
particularly at elevated temperatures. Data
outputs must be terminated in equivalent
loads for optimal performance.
Flag Outputs
The flag circuit differentiates between the
presence or absence of the optical signal
with a typical hysteresis of 1 dB. When an
acceptable signal (see specification) is
present, the flag output is logic-high.
Design Considerations
Typical connections the user can implement
to interface with ECL and PECL logic are
indicated in the accompanying schematics.
Good high frequency design techniques
should be used when laying out a PC board
to ensure optimum signal quality. A ground
plane is recommended with the bypass
capacitors and terminating resistors located
as close to the module as possible. Additional
power supply filtering may be required if
excessive noise is present due to nearby
switching power supplies or other noise
sources.
10-4400-0006 Rev. B
Termination of fibers with a
choice of optical connectors.
RT-2000PT
Function
Pin
1,2,3,4,6
8,13,15,16
5,17,18,19,20
7
9
10
11
12
14
Ground
Ground
No conncection
Data
Data
-5V
+5V
Flag (+)
Flag (-)
Data Outputs
Power Supply
A +5 volt DC source is the only supply
required. Pin 10 should be grounded if not
used as a photodetector monitor. Pins 1, 2,
3, 4, and 16 may be left unconnected or
may be grounded.
Photodetector Monitor
A photodetector monitor can be
implemented for applications requiring
access to a signal proportional to the input
optical power. This option is utilized by
connecting Pin 10 to the -5 volt supply
through a series resistor. It is recommended
that the resistor have a maximum 2.7 Kohm
value if the maximum optical input capability
of the receiver is going to be used. If the
function is not used, Pin 10 may be
grounded.
Pin Assignments
0.100
1.20
0.60
Pin 1
Pin 20
0.300 0.150
0.018
0.31
0.010
0.400
1.0 meter nominal fiber length
Receiver Specifications and Limits
Optical Characteristics (Performance @ 25oC)
Measured average sensitivity1
52 Mb/s
155 Mb/s
622 Mb/s
Maximum input power
Link status threshold
(Flag-logic low, decreasing light input)
52 Mb/s
155 Mb/s
622 Mb/s
Link status threshold
(Flag-logic high, increasing light input)
52 Mb/s
155 Mb/s
622 Mb/s
dBm
dBm
dBm
dBm
-38
-36
-30
-3
-54
-45
-45
-55
-44
-44
Units Min Typ Max
-40
-38
-32
-
-
-
-
-
-
-
-
-
-
-38
-36
-28
-39
-35
-27
Electrical Characteristics (Performance @ 25oC)
Supply voltage (Vcc)
Supply current
Output data voltage2
Low
High
Output flag voltage2
Low (52 Mb/s and 155 Mb/s)
High (52 Mb/s and 155 Mb/s)
Low (622 Mb/s)3
High (622 Mb/s)3
V
mA
V
V
4.8
-
-1.8
-1.1
-1.8
-1.1
-
3.0
5.3
150
-1.5
-
-1.5
-
0.5
-
Units Min Typ Max
Absolute Maximum Ratings
Supply voltage
Operating case temperature
Storage temperature
Lead soldering temp/time
V
oC
oC
oC/sec
4.75
-40
-40
-
-
-
-
-
5.5
85
85
250/10
Units Min Typ Max
5
100
-1.75
-1.0
-
-1.75
-1.0
0.2
4.0
1 All values are at 1310nm, measured with an optical input
using a 223 -1 pseudo random pattern with a 50% duty cycle
for a BER of 10-10.
2 Measured from Vcc with a 50-ohm load to Vcc -2 volts.
3 Measured from ground.
Receiver Ordering Information
RT 2000PT-052FC
RT 2000PT-155FC
RT 2000PT-622FC
Part Number
Data Rate
(NRZ Mb/s)
Typical
Sensitivity (dBm)
Interface
Type
Operating
Temperature (oC)
52
155
622
-40
-38
-32
50/125/900 um pigtail, FC/PC connector
50/125/900 um pigtail, FC/PC connector
50/125/900 um pigtail, FC/PC connector
- 40 to +85
- 40 to +85
- 40 to +85
Note:
FC/PC connectors on the fiber pigtail are standard.
Other connector types optional.
10-4400-0006 Rev. B
Notes:
Airpak transmitter and receiver modules
Product Changes
Laser Diode Incorporated reserves the right to make changes to the product(s) or information contained herein without
notice. No liability is assumed as a result of their use or application.
Personal Hazard (Transmitter only)
Normal aversion reactions will protect from radiation hazards to the eye associated with devices of this kind. Direct and
prolonged exposure to a laser beam may cause eye damage. Observe precautions accompanying the product and
precautions appropriate to a Class lllb laser.
Handling Precautions
Handle optical fiber with normal care, avoiding stretch, tension, twist, kink, or bend abuse. Products are subject to the risk
normally associated with sensitive electronic devices including static discharge, transients, and overload.
Special Orders
Some products are supplied with performance characteristics to meet unique customer requirements and differ from those
indicated herein. Contact the Laser Diode Incorporated Sales Department or your local representative to discuss your
individual requirements. For a complete listing of representatives, visit our website at www.laserdiode.com.
Ordering
Products can be ordered directly from Laser Diode Incorporated or its representatives. For a complete listing of
representatives, visit our website at www.laserdiode.com. Refer to the following part numbers:
10-4400-0006 Rev. B
Transmitter Ordering Information
TL 2063PT-010FC
TL 2063PT-005FC
TL 2065PT-010FC
TL 2065PT-005FC
Part Number
Data Rate
(NRZ Mb/s)
Nominal
Wavelength (nm)
Typical PAVG
(dBm)
Interface
Type
Operating
Temperature (oC)
155
155
155
155
1310
1310
1550
1550
- 8
- 3
- 8
- 3
9/125/900 um pigtail, FC/PC connector
9/125/900 um pigtail, FC/PC connector
9/125/900 um pigtail, FC/PC connector
9/125/900 um pigtail, FC/PC connector
- 40 to +85
- 40 to +85
- 40 to +65
- 40 to +65
Receiver Ordering Information
RT 2000PT-052FC
RT 2000PT-155FC
RT 2000PT-622FC
Part Number
Data Rate
(NRZ Mb/s)
Typical
Sensitivity (dBm)
Interface
Type
Operating
Temperature (oC)
52
155
622
-40
-38
-32
50/125/900 um pigtail, FC/PC connector
50/125/900 um pigtail, FC/PC connector
50/125/900 um pigtail, FC/PC connector
- 40 to +85
- 40 to +85
- 40 to +85
Note: FC/PC connectors on the fiber pigtail are standard. Other connector types are available. Contact the Laser Diode Incorporated Sales Department.
Tyco Electronics/LDI
2 Olsen Avenue
Edison, New Jersey 08820 USA
Voice: 732-549-9001
Fax: 732-906-1559
Internet: www.laserdiode.com
E-mail: sales@laserdiode.com
Fiber Optic Business Unit
Laser Diode Incorporated
DANGER
MAX. PEAK POWER 2 mW
WAVELENGTH 1310/1550nm
CAUTION: Use of contols, adjustments, or performance of procedures other than specified herein may result in hazardous radiation exposure.
"INVISIBLE LASER RADIATION - AVOID DIRECT EXPOSURE TO BEAM"
"CLASS IIIb LASER PRODUCT"
