Optical Sub-Assembly

Cooled BOSA module with integrated transmitter and receiver, designed for optical communication, CATV, and high-performance fiber optic systems. The cooled BOSA (Bi-directional Optical Sub-Assembly) module integrates both transmitter and receiver functions into a compact optical package, providing a complete solution for high-performance optical communication systems.

Main Advantage: Combines Multiple Tx/Rx wavelength options (see ordering table) and Optical Sub-Assembly Module for optical transmit / receive applications.
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Description

PRODUCT PROFILE

Cooled BOSA Module with Fiber Pigtail Overview

The cooled BOSA (Bi-directional Optical Sub-Assembly) module integrates both transmitter and receiver functions into a compact optical package, providing a complete solution for high-performance optical communication systems.

Featuring a DFB laser transmitter and high-linearity PIN receiver, this module ensures stable optical output and accurate signal detection. With integrated TEC, thermistor, optical isolator, and WDM filter, it delivers excellent wavelength stability, low noise performance, and high reliability.

Designed for demanding applications such as CATV and RFOG systems, the BOSA module offers a compact and efficient solution for OEM optical integration.

TECHNICAL INFORMATION

Key Features

  • Integrated transmitter and receiver (Tx/Rx)
  • High power optical output
  • High linearity PIN receiver
  • Built-in TEC and thermistor
  • Integrated optical isolator and WDM filter
  • Stable single longitudinal mode emission
  • Compact BOSA package
  • Telcordia GR-468 compliant
TECHNICAL INFORMATION

Applications

  • CATV systems
  • RFOG (Fiber optic gyroscope)
  • Optical communication systems
  • High-speed optical transmission
TECHNICAL INFORMATION

Transmitter Specifications

(Tc=25℃)

Parameter Min Typ Max Unit
Threshold Current (Ith) 8 15 – mA
Output Power (30mA) 1.8 2 – mW
Slope Efficiency – 0.14 – W/A
Center Wavelength λ-5 λ λ+5 nm
Side Mode Suppression Ratio 30 35 – dB
Linewidth 2 3 – MHz
Optical Isolation 25 – – dB
Power Monitor Current 100 300 1000 μA
Power Monitor Dark Current – – 10 nA
TEC Current – 0.5 0.9 A
TEC Voltage – – 1.2 V
Thermistor Resistance @25℃ 9.5 10 10.5 kΩ
Relative Intensity Noise – – -145 dB/Hz
CSO(Ith+20mA) – – -55 dBc
CTB(Ith+20mA) – – -60 dBc
Tx Bandwidth (-3dB) 1.2 – – GHz
TECHNICAL INFORMATION

Receiver Specifications

(Tc=25℃)

Parameter Symbol Min Typ Max Unit Condition
Responsivity R 0.8 – – A/W T=-40~+85℃
Capacitance Cpd – 0.5 0.6 pF Vr=5V,f=1MHz
Bandwidth BW 1.5 – – GHz
Dark Current Id – – 5 nA Vr=10V
IMD2 IMD2 – – -70 dBc λ=1550nm
IMD3 IMD3 – – -80 dBc λ=1550nm
Reverse Voltage VR – – 30 V
Return Loss RL 40 – – dB
Cross Talk CT – – 30 dB
TECHNICAL INFORMATION

Absolute Maximum Ratings

(Tc=25℃)

Parameter Symbol Min Max Unit
Storage Temperature Ts -40 85 ℃
Operating Case Temperature (with heatsink) Top -40 85 ℃
LD Forward Voltage Vf – 2 V
LD Forward Current If – 120 mA
Monitor PD Forward Current Imf – 2 mA
Monitor PD Reverse Voltage Vmf – 10 V
Analog PIN Reverse Voltage Vr 20 – V
Analog PIN Reverse Current Ir 10 – mA
Analog PIN Forward Voltage Vf – 0.8 V(I=3mA)
Analog PIN Forward Current If 10 – mA
TECHNICAL INFORMATION

Product Size

(in millimeters)

Cooled BOSA Module with Fiber Pigtail — Product Size
Product Size
TECHNICAL INFORMATION

Pin Configuration

Cooled BOSA Module with Fiber Pigtail — Pin Configuration
Pin Configuration
Pin Symbol Description
1 TEC+ TEC anode
2 Rth thermistor
3 PD- PD cathode
4 PD+ PD anode
5 LD- LD cathode
6 LD+ LD anode
7 Rth Thermistor
8 TEC- TEC cathode
Cooled BOSA Module with Fiber Pigtail — Pin Configuration
Pin Configuration
Pin Symbol Description
1 PD+ PIN anode
2 PD- PIN cathode
3 GND GND
TECHNICAL INFORMATION

Ordering Information

Family Name BOSA Cooled Tx wavelength (nm) Rx wavelength (nm) – Fiber Connector
LT B C 1270:T27

1290:T29

1310:T31

1450:T25

1470:T47

1490:T49

1550:T55

1610:T61

1310:R31

1550:R55

– SM 1:SC/PC

2:SC/APC

3:SC/UPC

4:FC/PC

5:FC/APC

6:FC/UPC

7:LC/PC

8:LC/APC

Example:

Family Name BOSA Cooled Tx wavelength (nm) Rx wavelength (nm) – Fiber Connector
LT B C Txx Rxx – SM 5
SYSTEM INTEGRATION

Optical Sub-Assembly Integration

Review the transmitter and receiver specifications separately, including their operating conditions, optical interface, package dimensions, pin configuration and temperature-control arrangements.

ENGINEERING FAQ

Frequently Asked Questions

What type of photonic device is Cooled BOSA Module with Fiber Pigtail?

Cooled BOSA Module with Fiber Pigtail belongs to the BOSA product family and is used for optical transmit / receive applications.

What wavelength or spectral range does Cooled BOSA Module with Fiber Pigtail use?

The specified wavelength or spectral range is Multiple Tx/Rx wavelength options (see ordering table). Refer to the technical specifications above for operating conditions and applicable tolerances.

What package is available for Cooled BOSA Module with Fiber Pigtail?

The product is listed in Optical Sub-Assembly Module format. Check the package drawing and pin or fiber details above before integration.

What applications are associated with Cooled BOSA Module with Fiber Pigtail?

The product is listed for Optical Communications. Suitability should be evaluated against the required optical and electrical specifications.

FURTHER READING

Related Technical Resources

Additional information

Device Technology

BOSA

Wavelength Band

Optical Communication Bands

Application

Optical Communications

Package Type

Optical Sub-Assembly Module

Device Function

Optical Transmit / Receive

Wavelength / Spectral Range

Multiple Tx/Rx wavelength options (see ordering table)

Optical Interface

Fiber Pigtail

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