Analog external cavity laser

a laser and external cavity technology, applied in the field of external cavity laser light sources, can solve the problems of reducing the transmission efficiency ratio of laser sources with narrower linewidth than typical dfbs, affecting the spread of catv and wireless distribution to 1550 nm networks, and affecting the transmission efficiency ratio of laser sources
US20050281298A1Inactive Publication Date: 2005-12-22K2 OPTRONICS +1
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
K2 OPTRONICS
Publication Date
2005-12-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the analog external cavity lasers (ECLs) including designs, materials, methods of manufacturing and methods of use for such ECLs and packages for such ECLS. Numerous criteria are presented that lead to improved cost / performance for ECLs and for systems incorporating such ECLs.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority from provisional patent application Ser. No. 60 / 558,927 filed Apr. 2, 2004, and provisional patent application Ser. No. 60 / 562,762, filed Apr. 16, 2004, and provisional patent application Ser. No. 60 / 638,679 filed Dec. 23, 2004, pursuant to one or more of 35 U.S.C. § 119, § 120, § 365. The entire contents of all cited provisional patent applications are incorporated herein by reference for all purposes.BACKGROUND OF THE INVENTION

[0002] 1. Field of Invention

[0003] This invention relates generally to the field of laser light sources and, more particularly, to external cavity laser light sources.

[0004] 2. Description of the Prior Art

[0005] Directly modulated distributed feedback (DFB) laser diodes are widely used in many applications, including the transmission of multiple channels of analog modulated signals as typically used for analog broadcast, digital simulcast and narrowcast (QAM-format) in cable ...

Claims

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