Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Reexamination Certificate
2006-05-16
2006-05-16
Hughes, Deandra M. (Department: 3663)
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
C359S341300
Reexamination Certificate
active
07044660
ABSTRACT:
An EDFA with integrated input and output modules is presented. The integrated input module has a packaged pump laser diode mounted to the metal EDFA package to provide a heat sink for the pump laser diode which sends the pump laser light over a optical fiber section connected to the amplifying erbium-doped optical fiber section. The fiber section is formed from an optical fiber which better matches the transmission modes in the erbium-doped optical fiber section and has an end subsection of the single mode fiber for a larger numerical aperture. Collimating lenses also increase the coupling efficiency of the laser diode to the erbium-doped fiber section. The integrated output module has a photodiode with a tap filter to monitor the output power of the EDFA, an optical isolator to prevent interference in the erbium-doped optical fiber section. With a twin optical isolator, the integrated input and output modules can be arranged in different ways and combinations with the erbium-doped optical fiber section. The resulting EDFAs can be manufactured relatively inexpensively into an very small packages compared to current EDFA packages.
REFERENCES:
patent: 5500768 (1996-03-01), Doggett et al.
patent: 5555330 (1996-09-01), Pan et al.
patent: 5642448 (1997-06-01), Pan et al.
patent: 5652814 (1997-07-01), Pan et al.
patent: 5812717 (1998-09-01), Gilliland
patent: 5815623 (1998-09-01), Gilliland et al.
patent: 6023542 (2000-02-01), Pan et al.
patent: 6071017 (2000-06-01), Gilliland et al.
patent: 6198858 (2001-03-01), Pan et al.
patent: 6283644 (2001-09-01), Gilliland et al.
patent: 6314117 (2001-11-01), Heim et al.
patent: 6370290 (2002-04-01), Ball et al.
patent: 6659657 (2003-12-01), Lin et al.
patent: 2002/0141142 (2002-10-01), Rookes
Guan Kejian
Pan Jing-Jong
Qiu Xiangdong
Zhang Mingjie
Aka Chan LLP
Hughes Deandra M.
Lightwaves 2020, Inc.
LandOfFree
Erbium-doped fiber amplifier and integrated circuit module... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Erbium-doped fiber amplifier and integrated circuit module..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erbium-doped fiber amplifier and integrated circuit module... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3582240