Apparatus and method for precisely wavelength-tuning single longitudinal mode tunable laser beams by utilizing wedge prism
US5550850A · kind A · utility
17Cited by
9References
2Claims
0Family size
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Key dates
| Filing date | Feb 8, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Feb 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0826
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus and a method for precisely wavelength-tuning single longitudinal mode tunable laser beams by utilizing a wedge prism are disclosed in which, instead of a tuning mirror, a prism is rotated, so that a single longitudinal mode can be maintained without causing a mode hopping of the longitudinal mode, thereby precisely tuning the wavelength. That is, a wedge prism 4 is inserted into the single longitudinal mode tunable laser resonator, and the prism is rotated, thereby precisely tuning the wavelength of the laser beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.