Method and apparatus for modulating a tunable laser
US6304586A · kind A · utility
38Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/143
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an optical signal generator for use in calibrating and testing optical components. The optical signal generator utilizes a tunable laser in conjunction with a novel modulation circuit to output an analog/digital optical signal. The modulator circuit combines a low-frequency, closed loop power control with a separate digital modulator. The output beam of the tunable laser may be modulated over a wide range of frequencies, duty cycles and amplitudes. Circuitry is also provided for modulation of an analog signal onto the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.