Description

1550nm DFB Butterfly Laser Modules

Key Features
. DFB Laser Chip, Butterfly Package
. High Stabilization
. Standard ITU Grid Wavelengths
. Telecordia GR-468-CORE Compliant
. RoHS Compliant

Applications
. Narrow transmitter
. CATV system
. Architectures Using Separate Optical
Wavelengths to Carry Targeted Services

Description

1550nm DFB laser Modules is a Dense Wavelength-Division Multiplexing (DWDM) laser for analog applications. It features a distributed feedback laser chip that has been designed specifically for Ratio Frequency (RF) applications. The laser module has a wide temperature range for reliable performance in harsh node environments and narrowband transmitter designs. It also features low adiabatic chirp to maximize signal quality in short and long lengths of fiber. The laser’s excellent inherent linearity minimizes degradation of the broadcast signals caused by quadrature amplitude modulated (QAM) channels. The laser module reduces cable network architecture fiber needs and lessens equipment requirements in the hub.

The 1550nm DFB laser Modules is available in a wide range of standard ITU wavelengths. The lasers are offered as either forward-path (40MHz – 860MHz) or return-path ( 5MHz– 200MHz) modules.

Recommended Operating Conditions

Case Operating Temperature Range: Max 65C
Relative Humidity: Max 85C

Absolute Maximum Ratings

Storage Temperature: Max 85C
Relative Humidity: Max 85%
LD Forward Current: Max 150mA
LD Reverse Voltage: Max 1V
PD Reverse Voltage: Max 10V
TEC Current: Max 1.8A
TEC Voltage: Max 2.5V
Leading Soldering Temperature and Time: Max 260/10C

Optical/Electric Characteristics

Threshold Current: 30mA
Operation Current: 120mA
Monitor Operation Current: 200mW
TEC Current: 1.8A
Thermistor Resistance: 10.5
Peak Wavelength: 1563nm
3DB Bandwidth: 1.2GHz