Low-Noise High Power Optical Fiber Amplifiers
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PriTel's LNHPFA and LNHPFA-NMA Series of Low-Noise High Power Optical Fiber Amplifiers are designed for R&D applications in 1550 nm telecommunications, fiber lasers and optical switching.
The LNHPFA and LNHPFA-NMA Series offer the lowest noise and the highest saturation output power at input powers as low as -40 dBm. The input signal is first amplified in the pre-amplifier and then boosted in the power amplifier, both integrated into the same unit. By inserting an optical band-pass filter between the preamp and power amp, the out of band noise is greatly diminished.
In the LNHPFA Series, the pre-amplifier optical output can be accessed, allowing the user to place an optional tunable filter between the two stages to suppress ASE from the pre-amplifier. In the lower-cost LNHPFA-NMA Series, no mid-stage access to the optical output from the pre-amplifier is present.
PriTel's LNHPFA and LNHPFA-NMA series of amplifiers are available in both polarization insensitive (Non-PM) and polarization maintaining (PM) versions and also with the Input/Output Power Monitor option. Short-pulse versions of the LNHPFA and LNHPFA-NMA are available using PriTel's Sub Picosecond Optical Fiber Amplifiers). Please contact us for more information.
Examples of Performance Configurations (Others available on Request)
| Click heading for specifications in PDF Format |
LNHPFA-33 | LNHPFA-15-NMA | PM-LNHPFA-15 | PM-LNHPFA-33-NMA |
| Saturated output power | 33 dBm | 15 dBm | 15 dBm | 33 dBm |
| Small signal gain | 0 to 50dB (adjustable) |
0 to 40dB (adjustable) |
0 to 40dB (adjustable) |
0 to 50dB (adjustable) |
| Optical noise figure | ≤ 6.0 dB | ≤ 3.6 dB | ≤ 2.5 dB | ≤ 4.5 dB |
| Polarization sensitivity | < 0.3 dB | < 0.3 dB | < 0.3 dB | < 0.3 dB |
| Input power range | -30 to +20 dB | -40 to +10 dB | -40 to +10 dB | -30 to +20 dB |
| Wavelength range | 1535-1565 nm | 1528-1565 nm | 1528-1565 nm | 1535-1565 nm |
| Spectral gain flatness (single channel input) |
≤ 1 dB typical (1540-1560 nm) |
≤ 1 dB typical (1530-1560 nm) |
≤ 1 dB typical (1530-1560 nm) |
≤ 1 dB typical (1540-1560 nm) |
| Optical | ||||
| Gain medium | Er/Yb-doped silica fiber |
Er-doped silica fiber |
Er-doped silica fiber |
Er/Yb-doped silica fiber |
| Pump source | 910-980 nm diode laser | |||
| Connectors | FC/APC (other connectors available on request) | |||
| Environmental | ||||
| Operating temperature | +15 to 30°C | |||
| Storage temperature | -20 to 50°C | |||
| Electrical/Mechanical | ||||
| Operating Voltage | 85-264 VAC at 47-63 Hz | |||
| Power consumption | < 100 W | |||
| Dimensions (2U) | 10cm x 26cm x 36cm |
10cm x 26cm x 28cm |
10cm x 26cm x 28cm |
10cm x 26cm x 36cm |
| Weight | 9 Kg | 5 Kg | 5 Kg | 9 Kg |
Typical Performance of PriTel's Low Noise High Power Optical Fiber Amplifiers
Click here to see Typical Performance of PriTel's Low Noise High Power Optical Fiber Amplifiers
Technical Specifications in PDF Format (Adobe®
Acrobat® Reader™ )
| LNHPFA Series | Non-PM, PM | |
| LNHPFA-NMA Series | Non-PM, PM |