Fiber Coupled Narrow Line Laser Diodes: 3-300kHz
The narrow-linewidth tunable fiber-coupled laser features a spectral linewidth as narrow as 3 kHz with wavelength tunability, With an ultra-long coherence length (~100 km), it enables high-precision interferometric and fiber sensing while its low spectral noise enhances SNR for detecting weak signals in interferometry and backscatter-based sensing. Its low phase noise and high stability make it ideal for atomic clocks, quantum sensing, gravimeters, fiber optic gyroscopes (FOGs), LiDAR, and Doppler velocimetry, while minimal frequency drift ensures long-term measurement stability. Integrated driving electronics allow precise output power and wavelength control, making it a highly reliable solution for cutting-edge scientific and industrial applications. We make both external and external cavity versions for cost-effective performance.
| Linewidth | Output Power(mW) | Wavelength(nm) | Fiber Type(nm) | Price(USD) | Datasheet | Buy | |
|---|---|---|---|---|---|---|---|
 | 3kHz | 10 | 1550nm | PM1550 | $4,850 |  |  |
| 5kHz | 20 | 1550nm | PM1550 | $3,350 | | |
 | 50kHz | 150 | 1550nm | PM1550 | $3,560 | | |
| 100kHz | 40 | 1550nm | PM1550 | $995 | | |
| 100kHz | 120 | 1550nm | PM1550 | $1,320 | | |
| 300kHz | 20 | 1550nm | PM1550 | $798 | | |
| 500kHz | 40 | 1550nm | PM1550 | $980 | | |