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Integrated turnkey soliton microcombs
- Publication Year :
- 2020
- Publisher :
- Nature Publishing Group, 2020.
-
Abstract
- Optical frequency combs have a wide range of applications in science and technology(1). An important development for miniature and integrated comb systems is the formation of dissipative Kerr solitons in coherently pumped high-quality-factor optical microresonators(2-9). Such soliton microcombs(10) have been applied to spectroscopy(11-13), the search for exoplanets(14,15), optical frequency synthesis(16), time keeping(17) and other areas(10). In addition, the recent integration of microresonators with lasers has revealed the viability of fully chip-based soliton microcombs(18,19). However, the operation of microcombs requires complex startup and feedback protocols that necessitate difficult-to-integrate optical and electrical components, and microcombs operating at rates that are compatible with electronic circuits-as is required in nearly all comb systems-have not yet been integrated with pump lasers because of their high power requirements. Here we experimentally demonstrate and theoretically describe a turnkey operation regime for soliton microcombs co-integrated with a pump laser. We show the appearance of an operating point at which solitons are immediately generated by turning the pump laser on, thereby eliminating the need for photonic and electronic control circuitry. These features are combined with high-quality-factor Si3N4 resonators to provide microcombs with repetition frequencies as low as 15 gigahertz that are fully integrated into an industry standard (butterfly) package, thereby offering compelling advantages for high-volume production.
- Subjects :
- Physics
Operating point
Multidisciplinary
business.industry
Physics::Optics
02 engineering and technology
Laser pumping
021001 nanoscience & nanotechnology
01 natural sciences
Metrology
010309 optics
Resonator
CMOS
visual_art
0103 physical sciences
Electronic component
visual_art.visual_art_medium
Optoelectronics
Soliton
Photonics
0210 nano-technology
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....692c925dcbf433d79aeb6e4a48a16dd2