Tunable Laser Gain Chips with Thermoelectric Coolers
|Item #||ASE Center|
|ASE 3 dB|
|TFP780A||780 nm||30 nm||-||3 dB|
|SAF1171S||1050 nm||60 nm||30 dB||2.5 dB (Max)|
|SAF1175S||1220 nm||80 nm||17 dB||0.5 dB|
|SAF1174S||1320 nm||80 nm||35 dB||0.35 dB|
|SAF1550S2||1550 nm||80 nm||17 dB||0.4 dB (Max)|
|SAF1550P2||1550 nm||80 nm||17 dB||0.4 dB (Max)|
|SAF1900S||1900 nm||150 nm||18 dB||1.5 dB|
All values are typical, unless otherwise indicated. Please refer to the Specs tab for more information. The Graphs tab describes the typical performance obtained in an external cavity laser configuration.
|Clicking this info icon below will open a window that contains item specifications and graphs.|
- Gain Chips Mounted for Easy Integration into External Cavity Lasers
- Half-Butterfly Assembly with Thermoelectric Cooler
- AR Coating Eliminates Unwanted Reflections, Increasing Laser Stability, Output Power, and Spectral Quality
- FP Chip Designed for Use in a Free-Space Littman Cavity
- SAF Chips Feature 1.5 m Long, SM or PM Tight Jacket Pigtail with FC/APC Connector
Fabry-Perot Gain Chip
Thorlabs' Fabry-Perot Gain Chip (TFP780A) provides a gain medium for light in the 740 - 800 nm spectral range. Optimized for high gain, high power, broad tunability, and minimal mode hopping, this gain chip is mounted in a half-butterfly package that exposes both ends of the gain medium to free space. A thermoelectric cooler (TEC) and thermistor, incorporated into the half-butterfly package and controlled with the easily accessible supplied leads (see the Graphs tab), enable tuning and optimization of the operating temperature. Both exposed surfaces of the gain medium are AR coated, virtually eliminating unwanted reflections.
The TFP780A is designed for use in a free-space Littman cavity (see the Graphs tab for a schematic). Thorlabs recommends the TLK-P00 Mounting Plate, which provides a complete solution for tuning the output wavelength of the gain chip. The input and output both couple into free space. If fiber coupling is desired for your application, please consider our SAF Gain Chips, listed below.
This device can also be coupled with a semiconductor optical amplifier to increase its output power. Please contact Tech Support for more information.
SAF Gain Chips
Thorlabs' family of Single-Angled-Facet (SAF) Gain Chips provides a gain medium for light in wavelength ranges centered at 1050, 1220, 1320, 1550, or 1900 nm. These gain chips feature AR coatings, an angled waveguide, and a proven SOA structure, which gives designers of external cavity lasers (ECLs) the highest power and widest tuning range available on the market. The gain chip is mounted in a half-butterfly package that collimates the output of the normal facet and couples it into an FC/APC connector. A thermoelectric cooler (TEC) and thermistor, incorporated into the package and controlled with the easily accessible supplied leads (see the Graphs tab), enable tuning and optimization of the operating temperature.
These gain chips are designed for use in a Littrow-configured cavity (see the Graphs tab for a schematic). The 26.5° exit angle is well matched to Thorlabs' TLK-P26 Mounting Plate, providing a complete solution for tuning the output wavelength of the gain chip. The models designed for 1220, 1320, or 1550 nm (SAF1175S, SAF1174S, SAF1550S2, and SAF1550P2) additionally incorporate an optical isolator on the fiber output. The isolator protects the gain chip against unwanted back reflections from an external system, increasing laser stability, output power, and spectral quality.
On certain models, we can optionally provide a PM fiber or an optical isolator for the free-space input. Please contact Tech Support for a quote.