Features
- Designed for Broad Tuning and High Power Output
- Ultra-Low Reflectance at Angled Facet
- Angled Waveguides and AR Coating Virtually Eliminate Unwanted Reflections
- Gain Medium for Widely Tunable External Cavity Lasers
- InP Gain Chip on Submount
Single Angled Facet (SAF) gain chips use a geometric technique to further reduce the reflection on one end of the chip by curving the ridge waveguide so that it is not normally incident to the chip facet. This, in combination with an AR coating on that facet, virtually eliminates back reflections that can create unwanted feedback into the laser cavity. As a result, Thorlabs’ SAF1118C gain chip is superior to standard gain chips when used in Extended Cavity Lasers (ECLs), particularly tunable ECLs, since any residual reflection from the AR-coated Fabry-Perot (FP) gain chip facet often limits the stability, output power, and spectral quality of the laser.
Specifications
- Operating Wavelength Range (Min/Max): 1568 nm/1608 nm
- Operating Current (Typ/Max): 300/350 mA
- Threshold current (Typ/Max): 60/75 mA
- Output Power Over Band (Min/Typ): 40/60 mW
- Side-Mode Suppression Ratio: 50 dB
- Angled Facet Reflectivity (Typ/Max) 0.005/0.01%
- Normal Facet Reflectivity: 10%
- Forward Voltage (Typ/Max): 1.3/1.8 V
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