Variable wavelength light source using a laser, wavelength control method, optical communication system and optical communication method
US5862165A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Aug 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable wavelength light source is provided with a laser of which the oscillating state can be changed over between two oscillating states accompanied by a change of an oscillation wavelength, and an optical selection element for selecting an output light in one of the two oscillating states of the laser. The optical selection element is capable of changing over which of the output lights in the two oscillating states of the laser is to be selected. Also, by using a laser in which the oscillation wavelength in the respective oscillating states can be changed, the wavelength variation ranges in the both oscillating states can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.