Features
- Excellent frequency stability
- Narrow linewidth
- Low noise
- Stable polarization
Overview
This fiber-coupled high-power DFB laser package represents a precision OEM solution, operating with excellent frequency stability, narrow linewidth, low noise, and stable polarization. The module contains a high‐power DFB laser, optical isolator, single‐mode fiber pigtail, thermoelectric cooler, thermistor, and monitor detector integrated with a laser current source, temperature controller, and monitor detector readout amplifier.
The entire module operates from a single +5 V supply and provides a bi‐directional power adjust input that may be used for SBS prevention, for constant power operation in conjunction with the monitor detector readout signal and an external control loop, or for finely adjusting the laser oscillation frequency via chirp. The unit also incorporates a bi‐directional temperature adjust input for coarse tuning of the laser oscillation frequency. The module is designed and built using our high‐reliability platform for defense components and incorporates an advanced ultra‐low noise laser current source.
Specifications
| Parameter | Sym. | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Optical output power | Pop | 110 | mW | |||
| Optical output power fluctuation1 | ΔPop | 1σ, tm=400s, | 20 | 50 | PPM | |
| 0.1s avg&period | ||||||
| Optical frequency accuracy2 | Fopt | -5 | 5 | GHz | ||
| Optical frequency stability3 | ΔFopt | See note 3 | <20 | MHz | ||
| Side mode suppression ratio | SMSR | 30 | dB | |||
| Linewidth | Δν | 170 | 500 | kHz | ||
| Relative intensity noise4 | RIN | 50 MHz to 18GHz | -155 | -150 | dBc/Hz | |
| Operational temperature | Top | temp. at base of module, non-condensing | -10 | 60 | °C |