High energy, all fiber, mode locked fiber laser

Details High energy, all fiber, mode locked fiber laser High energy, all fiber, mode locked fiber laser

2011-03-15

2011-03-15

Van Roy, Tod T (Department: 2828)

Coherent light generators

Particular beam control device

Mode locking

C372S006000, C372S027000, C372S094000

Reexamination Certificate

active

07907645

ABSTRACT:
Methods and systems for generating high energy, mode locked, femtosecond and picosecond laser pulses are disclosed, including generating electromagnetic radiation from a pump laser; coupling the electromagnetic radiation to a rare Earth doped fiber using a pump/signal coupler; coupling the output from the rare Earth doped fiber to a first fiber; coupling a bandpass filter to the first fiber output and to a second fiber; coupling a first in-line polarization controller to the second fiber output and an in-line polarization beam splitter comprising a non-polarization maintaining fiber output and a polarization maintaining fiber output configured to emit an output laser pulse; coupling a polarization insensitive isolator to the non-polarization maintaining fiber output of the in-line polarization beam splitter and to a second in-line polarization controller; coupling a third fiber output to the second in-line polarization controller and to the pump/signal coupler. Other embodiments are described and claimed.

REFERENCES:
patent: 5828682 (1998-10-01), Moores
patent: H1813 (1999-11-01), Kersey
patent: 7477666 (2009-01-01), Liu
patent: 2005/0201432 (2005-09-01), Uehara et al.
patent: 2006/0182153 (2006-08-01), Liu
Jian Liu, High Energy All Fiber Mode Locked Fiber Laser, currently unpublished patent application filed Mar. 9, 2009, U.S. Appl. No. 12/400,780 / Confirmation No. 4642
B. Ortaç, M. Baumgartl, O. Schmidt, J. Limpert, A. Hideur, I. Sagnes, A. Garnache, and A. Tünnermann, “μJ-Level Femtosecond and Picosecond Fiber Oscillators,” in Advanced Solid-State Photonics, OSA Technical Digest Series (CD) (Optical Society of America, 2009), paper MB15.

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