Gigalight Optical Amplifier (EDFA)
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Gigalight Optical Amplifier
The main function of Optical Amplifier (OA) card launched by Shenzhen Gigalight is to compensate the power of signal light in the transmission link, and it can amplify the optical signals of up to 48 channels in C-band (channel spacing 100GHz) or 96 channels (channel spacing 50GHz) at the same time, and it has the features of gain flatness, adjustable gain and small noise index. At the same time, the card has built-in OSC optical monitoring channel to support OSC-based DCN communication, which is an indispensable part of DWDM system and future high-speed system, all-optical network long-distance transmission.
Application scenario
For optical terminal stations (OTMs) for booster amplification of multiplexing signals and pre-amplification of demultiplexed signals
Applicable to optical relay station (OLA), complete bidirectional transmission signal amplification, extend the transmission distance
| OA | |
| Occupied slots | 1 slot |
| EDFA | Optional built-in 1*EDFA (BA, PA, LA parameters optional)
Optional built-in 2*EDFA (BA, PA, LA parameters optional) |
| OSC | Option without OSC
Optional built-in 1*OSC (OTM station) Optional built-in 2*OSC (OLA station) Working wavelength: 1510nm Operating rate: 1.25Gb/s |
| VOA | Optional built-in VOA, quantity in line with EDFA
Position: EDFA input front Intrinsic insertion loss: <1dB Adjustment range: 0 ~ 15dB Power down state is inherent insertion loss |
| MON monitoring port | Standard, optical power difference between MON and main optical channel 21~23dB |
| OTDR measurement port | Optional, number of ports matches line interface
OTDR signal wavelength: 1625nm |
| lOTDR channel loss: <1dB | |||
| EDFA Parameters | |||
| Model | 20G17 | 20G25 | 20G30 |
| Wavelength range (nm) | 1528 ~1568 | 1528 ~1568 | 1528 ~1568 |
| Gain range (dB) | 14 ~ 20 | 22 ~ 28 | 27 ~ 33 |
| Maximum total output optical power (dBm) | ≥20 | ≥20 | ≥20 |
| Noise (dB) | <5.5 (nominal gain) | <5.5 (nominal gain) | <5.5 (nominal gain) |
| Gain flatness (dB) | <1.5 | <1.5 | <1.5 |
| Polarization-related loss (dB) | < 0.5 | < 0.5 | < 0.5 |
| Input optical power detection range (dBm) | -23 ~ 8 | -31 ~ 0 | -36 ~ -5 |
| Output optical power detection range (dBm) | -6 ~ 20 | -6 ~ 20 | -6 ~ 20 |
| Reflection coefficient (dB) | <-30 | <-30 | <-30 |
| Gain stability (dB) | ±0.5 | ±0.5 | ±0.5 |
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