Features
Integrated Design Optimizes Performance at High Bit Rates up to 2.5 Gb/s applications.
• -34 dBm Typical Sensitivity
• -4 dBm Overload Power (typ.)
• -30 dB Optical Return Loss (ORL)
• 30 μm Active Area APD
• Integral Thermistor
• DC Coupled GaAs IC Preamp
• Simplifies Receiver Circuit Design
APPLICATIONS
This 40 GHz gain bandwidth product APD detector preamp is intended to function as an optical receiver in 1,310nm or 1,550nm SONET, SDH or other long distance fiber optic systems operating at 2.5 Gb/s. The nominal 10 K. Integral thermistor allows accurate monitoring of the APD temperature and facilitates the design of the APD bias control circuits. The detector preamplifier is DC coupled and has a low electrical output when the APD is illuminated.
DESCRIPTION
The FRM5W231DR incorporates a 30 micron InGaAs Avalanche Photodiode (APD) detector, a GaAs IC transimpedance preamplifier, and a thermistor in a hermetically sealed butterfly type package. The APD is processed with modern MOVPE techniques resulting in reliable performance over a wide range of operating conditions. The lens coupling system and the Graded Index (GI) 50/125 μm multimode fiber are assembled using Nd: YAG welding techniques.
