Gain-flattening apparatus and methods and optical amplifiers employing same
US7602545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Jun 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Gain-flattening components for compensation of at least a portion of the spectral gain profile of an optical amplifier comprises an optical substrate having at least a first gain-flattening filter disposed on a first surface of the optical substrate and a second gain-flattening filter disposed on a second surface of the optical substrate. The first gain-flattening filter has a transmission curve with a spectral loss profile for optical signals in the optical wavelength range, and has a net insertion loss error function relative to the spectral gain profile of an optical amplifier. The spectral loss profile of the second gain-flattening filter corresponds to the net insertion error function of the first gain-flattening filter. Gain-flattening optical amplifiers comprise one or more such gain-flattening components and at least one optical signal amplifier. Methods of producing gain-flattening components comprise:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.