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Injection locking of Yb-fiber based optical frequency comb
Naoya Kuse1, Akira Ozawa, Yutaka Nomura
1The Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan.
Optics Express
|May 9, 2012
Summary
Synchronization of two Ytterbium-doped fiber mode-locked lasers was achieved using injection locking. This method transfers the master laser
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Mode-locked fiber lasers are crucial for generating optical frequency combs.
- Synchronizing independent frequency combs is challenging but essential for advanced applications.
Purpose of the Study:
- To demonstrate a robust method for synchronizing two independent Ytterbium-doped fiber mode-locked lasers.
- To transfer the stability and accuracy of a master frequency comb to a slave comb.
Main Methods:
- Injection locking: injecting the master laser's pulse train into the slave laser cavity.
- Passive stabilization of the frequency comb.
- Active stabilization of the relative offset frequency difference.
Main Results:
- Successful synchronization of offset and repetition frequency between two independent Ytterbium-doped fiber mode-locked lasers.
- Transfer of master laser's frequency comb stability and accuracy to the slave laser.
- Demonstration of robust synchronization using both passive and active stabilization techniques.
Conclusions:
- Injection locking provides a robust and convenient method for duplicating frequency combs.
- This technique is applicable to long-distance frequency comb transfer.
- It can also aid in initiating and stabilizing mode-locking for high repetition rate or ultrabroadband frequency combs.
