Laser with multiple gain elements pumped by a single excitation

Details Laser with multiple gain elements pumped by a single excitation Laser with multiple gain elements pumped by a single excitation

1994-10-31

1996-07-30

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Producing plural wavelength output

372100, 372 93, 372 22, 372 39, H01S 310

Patent

active

055419461

ABSTRACT:
A laser produces laser emission at two or more wavelengths simultaneously. he laser includes at least two gain elements, and each gain element generates a different wavelength. A single optical pumping source is used for optically exciting all laser gain elements contained within the laser resonator cavity. A wavelength dispersing element such as a prism is disposed in the laser resonator cavity for dispersing the wavelengths operating simultaneously within the laser resonator cavity and to create separate regions for each laser gain element. Laser gain elements may be tunable laser gain elements or discretely emitting laser gain elements. Arbitrarily large wavelength separations between the wavelengths operating simultaneously may be achieved in this manner to produce stable cw or pulsed output, which may be Q-switched or line narrowed. Intracavity sum frequency generation can be produced efficiently by using a non-linear sum frequency generating crystal disposed at a laser resonator cavity waist. The multiple gain elements may be of different materials or the same material.

REFERENCES:
patent: 5307358 (1994-04-01), Scheps
patent: 5333142 (1994-07-01), Scheps
patent: 5357532 (1994-10-01), Aoshima et al.
U.S. application Ser. No. 08/155,034, filed Nov. 19, 1993, Scheps et al.

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