CoSF-R-ER-B-MP Narrow-Linewidth Single-Frequency Fiber Laser
Shanghai Hanyu's CoSF-R optimized-traveling-wave-cavity ultranarrow-linewidth single-frequency fiber laser is an independently developed low-noise fiber laser. Its unique optimized traveling-wave cavity eliminates standing-wave spatial hole burning commonly found in linear-cavity fiber lasers. An ultranarrow-bandwidth fiber filter designed by Shanghai Hanyu selects single-longitudinal-mode output to ensure single-frequency operation. Polarization-control technology eliminates polarization hole burning in an all-fiber design, providing stable linearly polarized, single-longitudinal-mode, ultranarrow-linewidth single-frequency output. CoSF-R offers a linewidth below 1 kHz with ultralow phase and frequency noise. Its very long laser cavity gives substantially lower overall noise than other commercial short-cavity single-frequency lasers. CoSF-R-ER-B-MP operates in the 1.5 um band. The benchtop ultranarrow-linewidth single-frequency fiber laser provides output power up to 5 W, with higher-power versions available on request. The standard wavelength is 1550.12 nm; wavelengths in the 1535–1605 nm range, including ITU-grid standard wavelengths, are optional.
Overview
Specifications
| Parameter | Value |
|---|---|
| Center Wavelength | 1530-1572nm (Please Specify) |
| Output Power | min:1 W; max:5 W |
| Emitted Laser Type | CW, Single-Frequency, Single-Longitudinal-Mode |
| Output Beam Quality M² | typical:1.05; max:1.1 |
| Linewidth | max:<<1 |
| RIN Peak Frequency | min:40 kHz; typical:70 kHz; max:100 kHz |
| Relative Intensity Noise Peak (RIN Peak) | typical:-145 dBc/Hz; max:-140 dBc/Hz |
| Relative Intensity Noise (RIN) @10MHz | typical:-155 dBc/Hz; max:-150 dBc/Hz |
| Phase Noise (1m OPD) [1m OPD / @10Hz] | 100@10Hz |
| Phase Noise (1m OPD) [1m OPD / @10kHz] | 0.6@10kHz |
| Phase Noise (1m OPD) [1m OPD / @100kHz] | 0.1@100kHz |
| Optical Signal-to-Noise Ratio (50pm Resolution) | min:55 dB; typical:60 dB |
| Output Polarization Type | Linear Polarization |
| Output Polarization Extinction Ratio | min:20 dB; typical:23 dB |
| Output Power Stability | typical:0.5 %; max:1 % |
| Output Optical Isolation | min:50 dB |
| Thermal Wavelength Tuning | min:0.6 nm; typical:0.8 nm; max:1.0 nm |
| PZT Fast Frequency Tuning | Optional |
| PZT Modulation Frequency | min:DC; typical:10 kHz; max:20 kHz |
| Modulation Wavelength Range [PZT] | typical:>8 GHz; max:>10 GHz |
| Operating Temperature | min:15 ℃; max:40 ℃ |
| Storage Temperature | min:-20 ℃; max:70 ℃ |
| Operating Voltage [Source Unit Column: DC; Value Includes Supply Frequency; Type Requires Clarification] | 110-240V 50-60Hz |
| Communication Control Interface | RS232 |
| Output Fiber Type | Panda PM1550 |
| Output Fiber Length | > 0.5 m |
| Output Fiber Connector | FC/APC |
| Dimensions | 340 mm × 240 mm × 105 mm |
| Weight | <5 kg |
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