Back to results
US 6,783,284 B2Granted
Optical module for wavelength reference measurement in WDM systems
AssigneeInfineon Technologies AG
InventorsHans-Ludwig Althaus, Joachim Reill, Karl-Heinz Schlereth
Life of this patent
Estimating the term…
Abstract
An optical for wavelength reference measurement has in essence an optical conductor with integrated fiber Bragg grating that has a transmission maximum at a desired wavelength. Arranged downstream of the fiber Bragg grating is a photoreceiver receiving the measuring radiation beam passing through the fiber Bragg grating. If desired, it is possible to use a beam splitter to produce a reference radiation beam that is detected in a further photoreceiver.
Claims9
An optical module for wavelength reference measurement, comprising:
- a main module body formed with a light input opening for receiving a radiation beam, and an inner cavity defining a first free beam path and a second free beam path for the radiation beam coupled in at said light input opening;
- a first photoreceiver disposed to receive the radiation beam in said first free beam path and to generate a reference signal;
- and
- an optical conductor formed with an integrated fiber Bragg grating and a second photoreceiver disposed downstream of said optical conductor in said second free beam path for producing a measuring signal, said integrated fiber Bragg grating having a transmission maximum at a desired wavelength.
1 more element
Dependencies are inferred from the claim text.