Broadband absorber having multiple quantum wells of different thicknesses
US5265107A · kind A · utility
102Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Feb 5, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/146
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A saturable absorber comprising multiple quantum-well layers (32, 34, 36) of differing thicknesses and separated by barrier layers (38) so as to produce a wide-band absorption. Such a saturable absorber (30) is useful in a hybrid mode-locked laser having an optical cavity defined by two mirrors (10, 12) into which are placed the saturable absorber (30) and an optical amplifier (14) driven by both a DC bias and an RF modulation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.