| US 7,499,482 B2 | ||
| Injection locking type or MOPA type of laser device | ||
| Kiyoharu Nakao, Isehara (Japan); and Yoshifumi Ueno, Tsukuba (Japan) | ||
| Assigned to Komatsu Ltd., Tokyo (Japan) | ||
| Filed on Jun. 19, 2006, as Appl. No. 11/454,856. | ||
| Application 11/454856 is a continuation of application No. 11/212874, filed on Aug. 29, 2005, granted, now 7,230,966. | ||
| Application 11/212874 is a continuation of application No. 10/094889, filed on Mar. 12, 2002, granted, now 7,095,773. | ||
| Claims priority of application No. 2001-081569 (JP), filed on Mar. 21, 2001; and application No. 2001-267158 (JP), filed on Sep. 04, 2001. | ||
| Prior Publication US 2006/0239307 A1, Oct. 26, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H01S 3/22 (2006.01) | ||
| U.S. Cl. 372—57 [372/58] | 6 Claims |
| 1. An injection locking type or MOPA type of laser device, including,
an oscillator for exciting a laser gas by oscillator discharge and oscillating seed laser light with band-narrowed wavelength;
an amplifier for amplifying said seed laser light by amplification discharge to emit output laser light;
a delay circuit for setting a delay time from light emission of said seed laser light to start of said amplification discharge
comprising:
a delay time compensation circuit for performing compensation of said delay circuit so that said delay time becomes an optimal
delay time.
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