1.Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
2.John A. Paulson School of Engineering and Applied Science, Harvard University, Cambridge, MA 02138, USA
3.Center for Free-Electron Laser Science, DESY and Hamburg University, Notkestraße 85, 22607 Hamburg, Germany
4.Present address: Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), 138634 Singapore, Singapore
5.Present address: Analog Photonics, 1 Marina Park Drive, Boston, MA 02210, USA
6.Present address: Department of Electrical and Electronics Engineering, Koç University, Sarıyer, Istanbul 34450, Turkey
Ming Xin (xinm@mit.edu)
纸质出版日期:2019,
网络出版日期:2019-12-18,
收稿日期:2019-06-23,
修回日期:2019-11-15,
录用日期:2019-12-03
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Optical frequency synthesizer with an integrated erbium tunable laser[J]. LSA, 2019,8(6):1190-1197.
Xin, M. et al. Optical frequency synthesizer with an integrated erbium tunable laser. Light: Science & Applications, 8, 1190-1197 (2019).
Optical frequency synthesizer with an integrated erbium tunable laser[J]. LSA, 2019,8(6):1190-1197. DOI: 10.1038/s41377-019-0233-z.
Xin, M. et al. Optical frequency synthesizer with an integrated erbium tunable laser. Light: Science & Applications, 8, 1190-1197 (2019). DOI: 10.1038/s41377-019-0233-z.
Optical frequency synthesizers have widespread applications in optical spectroscopy
frequency metrology
and many other fields. However
their applicability is currently limited by size
cost
and power consumption. Silicon photonics technology
which is compatible with complementary-metal-oxide-semiconductor fabrication processes
provides a low-cost
compact size
lightweight
and low-power-consumption solution. In this work
we demonstrate an optical frequency synthesizer using a fully integrated silicon-based tunable laser. The synthesizer can be self-calibrated by tuning the repetition rate of the internal mode-locked laser. A 20 nm tuning range from 1544 to 1564 nm is achieved with ~10
-13
frequency instability at 10 s averaging time. Its flexibility and fast reconfigurability are also demonstrated by fine tuning the synthesizer and generating arbitrary specified patter
ns over time-frequency coordinates. This work promotes the frequency stability of silicon-based integrated tunable lasers and paves the way toward chip-scale low-cost optical frequency synthesizers.
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