Chirp-free directly modulated light source with integrated wavelocker
AssigneeSiros Technologies, Inc.
InventorsRobert Thornton, John Epler, Doug Stinson
Life of this patent
Estimating the term…
Abstract
A light source is disclosed for use optical communications systems. In one aspect, a gain region defined by a first and second mirror is provided having a corresponding resonant mode, and an external cavity defined by a third mirror and the second mirror is also provided having a plurality of resonant modes. The second mirror is configured such that one of the external cavity resonant modes is selected. The single channel laser has wavelength precision sufficient to eliminate the need for an external wavelocker, and has an external cavity capable of being directly modulated in a chirp-free manner.
Claims112
A light source comprising:
- a gain region defined by a first and second mirror, said gain region having a corresponding response shape;
- an external cavity defined by a third mirror and said second mirror, said external cavity having a plurality of resonant modes;
- and
- wherein said second mirror is formed such that said response shape of said gain region selects a single one of said plurality of modes.
A light source comprising:
- a gain region defined by a first and second mirror, said gain region having a corresponding response shape;
- an external cavity defined by a third mirror and said second mirror, said external cavity having a plurality of resonant modes including a desired mode of operation and at least one undesired mode of operation;
- and
- wherein said second mirror is formed such that said response shape of said gain region selects said desired mode of operation while not selecting said at least one undesired mode of operation.
A light source comprising:
- a gain region defined by a first and second mirror, said gain region having a corresponding response shape;
- an external cavity defined by a third mirror and said second mirror, said external cavity having a plurality of resonant modes including a desired mode of operation interspersed in frequency between undesired modes of operation;
- and
- wherein said gain region is formed such that said response shape of said gain region selects said desired mode of operation while not overlapping in frequency with said undesired modes of operation.
A light source comprising:
- a gain region defined by a first and second mirror, said gain region having a corresponding response shape;
- an external cavity defined by a third mirror and said second mirror, said external cavity having a plurality of resonant modes including a desired mode of operation interspersed in frequency between undesired modes of operation;
- and
- wherein said gain region is formed such that said response shape of said gain region selects said desired mode of operation such that said undesired modes of operation do not operate.
A light source comprising:
- a gain region defined by a first and second mirror, said gain region having a corresponding response shape;
- an external cavity defined by a third mirror and said second mirror, said external cavity having a plurality of resonant modes;
- wherein said second mirror is formed such that said response shape of said gain region selects a single one of said plurality of modes;
- and
- wherein said light source may be operated at said selected mode without the use of an external wavelocker.
Dependencies are inferred from the claim text.