Recently Completed Projects

Tunable Receiver for Fiber-to-the-Home (FTTH) Applications
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• 2.5Gb/s tunable APD-TIA receiver designed for WDM PON
• Allows receiver to be tuned to any 100 GHz DWDM channel by heating filter element
• Provides high level of sensitivity (-30 dBm typical) with virtually no degradation from adjacent channels

2.7 Gb/s DWDM Small Form Factor Pluggable (SFP) Transceiver align="left">
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• Key optical components include a cooled DWDM TOSA and APD ROSA
• Rigid-flex PCB design
• Optical output power up to +5 dBm
• 180 km reach with < 2dB dispersion penalty
• 1 Watt typical power consumption
• Optimized for performance under low OSNR conditions
• GR-468 qualified, including wavelength drift over lifetime

Dual Low Noise Figure EDFA's with Tunable Filters on Optical Line Card align="left">

• Dual, identical optical paths provided on single 3U line card
• EDFA provides signal amplification across C band
• Tunable filter used to extract any C band wavelength
• VOA allows control of optical output power level
• Optical power monitoring accurate to +/-2 dB over temperature and input dynamic range
• Control and status provided via microcontroller and SNMP interface

Low Noise Figure EDFA with AWG on Optical Line Card align="left">

• One complete optical path provided on single 3U line card
• EDFA provides signal amplification across C band
• AWG demultiplexer extracts 48 C band wavelengths
• VOA allows control of optical output power level
• Optical power monitoring accurate to +/-2 dB over temperature and input dynamic range
• Control and status provided via microcontroller and SNMP interface

19" CompactPCI Based Rack Mountable Chassis for Optical Line Cards align="left">
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• 4U high, 19" rack mountable chassis
• 18 slots for redundant power supplies, controller, and custom optical line cards
• Customized CompactPCI backplane
• Remote control and status provided via SNMP interface

SNMP Software Agent for Chassis Control align="left">

• Capability to control and request status from any line card installed in chassis
• Standard SNMP manager software can be used for all communication
• Alarms and SNMP Traps with configurable threshold levels provided for every critical parameter

 

2.5 Gb/s Transponders and Receiver MSA Modules align="left">
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• Re-designed circuitry in all modules to accept new high performance APD
• All modules tested and characterized over full temperature range(-40C to +85C) and supply voltage range
• Provided very accurate optical receive power monitoring (+/- 1 dB) over wide dynamic input range
• Met dispersion performance specifications up to 180 km reach

 

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