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SOLID-STATE 488-nm LASER

Photonics Spectra
Jul 2001
Coherent Inc.Request Info
 
lSolidThe 488-nm solid-state diode-pumped laser from Coherent Inc.'s Laser Div. produces 20 mW. Based on a vertical external-cavity surface-emitting laser, the Sapphire 488-20 produces a TEM00 beam profile and optical noise <0.25% rms. The company says this laser is 90% smaller, consumes 98% less power and dissipates 98% less heat than typical air-cooled argon-ion lasers. Within the laser, a semiconductor laser optically pumps the semiconductor gain medium. This proprietary optically pumped semiconductor chip contains quantum-well structures that provide gain at 976 nm. An intracavity frequency-doubling crystal converts the emission to the 488-nm wavelength.


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