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Title: Direct chip-scale optical frequency divider via regenerative harmonic injection locking

A novel optical frequency division technique, called regenerative harmonic injection locking, is used to transfer the timing stability of an optical frequency comb with a repetition rate in the millimeter wave range (∼<#comment/>300GHz) to a chip-scale mode-locked laser with a∼<#comment/>10GHzrepetition rate. By doing so, the 300 GHz optical frequency comb is optically divided by a factor of30×<#comment/>to 10 GHz. The stability of the mode-locked laser after regenerative harmonic injection locking is∼<#comment/>10−<#comment/>12at 1 s with a1/τ<#comment/>trend. To facilitate optical frequency division, a coupled opto-electronic oscillator is implemented to assist the injection locking process. This technique is exceptionally power efficient, as it uses less than100µ<#comment/>Wof optical power to achieve stable locking.

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Publication Date:
Journal Name:
Optics Letters
Page Range or eLocation-ID:
Article No. 908
0146-9592; OPLEDP
Optical Society of America
Sponsoring Org:
National Science Foundation
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