ROSA – Receiver Optical Sub-Assembly
- Technology
- Digital fibre optic components
- Partner
- Coretek
ROSA components from Coretek Opto. are highly reliable photodiode (PD) PIN or PIN-TIA devices packaged in a hermetically sealed assembly.
Photodiodes are most typically available with corresponding TIA (Trans Impedance Amplifier) and AGC (Automatic Gain Control) for the selected data rate, however, in certain applications it is more appropriate to use a photo diode on its own. Avalanche Photo Diodes (APD) are available to meet high sensitivity requirements for long haul applications.
PIN photodiodes are available as InGaAs type for the wavelength range from 1100 to 1650 nm, GaAs type for 850 nm Multi-Mode (MM) applications and Si type for the 650 nm range associated with Plastic Optical Fiber (POF) communications links.
Avalanche Photo Diodes (APD) are available for high sensitivity
Range features
A high level overview of what this range offers
- InGaAs PIN photodiode with 75 µm active area optimised for communications applications
- -40 to 85 °C operating temperature range for industrial conditions fully qualified to Telcordia standards
- Applications include SONET/SDH, Ethernet/Fibre Channel, Fiber Optic Sensing, Test and Measurement, and Instrumentation
- Dual, triple, and quad receivers inside one package available, application specific therefore customised
- Photodiodes for use with 3 V and 5 V power supplies
- Excellent performance characteristics include low dark current, low noise, high responsivity, and high overload (saturation)
- Single-ended and differential output types available
- Typical packaging options include LC, SC, ST, and FC, both barrel and receptacle types, with custom packaging solutions offered
What’s in this range?
All the variants in the range and a comparison of what they offer
| Receiver type | Wavelength range (nm) | Data rates | Fiber types | Standard packages |
|---|---|---|---|---|
GaAs PIN/PIN-TIA | 840 to 860 | 10 Mb/s to 10 Gb/s | MM 50/125, MM 62.5/125 | TO-Can (Plastic), Receptacle ST/SC/FC |
InGaAs PIN/PIN-TIA | 1100 to 1650 | 10 Mb/s to 10 Gb/s | SM | TO-Can (Metal), Receptacle ST/SC/FC |
InGaAs APD-TIA | 1260 to 1620 | 10 Mb/s to 10 Gb/s | SM | TO-Can (Metal), Receptacle ST/SC/FC |
Si PIN/PIN-TIA | 635 to 660 | 10 to 200 Mb/s | POF | TO-Can (Plastic) |
