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Title: Phase-locked photonic wire lasers by π coupling

Abstract

The term photonic wire laser is now widely used for lasers with transverse dimensions much smaller than the wavelength. As a result, a large fraction of the mode propagates outside the solid core. In this paper, we propose and demonstrate a scheme to form a coupled cavity by taking advantage of this unique feature of photonic wire lasers. In this scheme, we used quantum cascade lasers with antenna-coupled third-order distributed feedback grating as the platform. Inspired by the chemistry of hybridization, our scheme phase-locks multiple such lasers by π coupling. With the coupled-cavity laser, we demonstrated several performance metrics that are important for various applications in sensing and imaging: a continuous electrical tuning of ~10 GHz at ~3.8 THz (fractional tuning of ~0.26%), a good level of output power (~50–90 mW of continuous-wave power) and tight beam patterns (~100 of beam divergence).

Authors:
 [1];  [2]; ORCiD logo [3]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Shanghai for Science and Technology (China)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
OSTI Identifier:
1633982
Report Number(s):
SAND-2020-5990J
Journal ID: ISSN 1749-4885; 686655
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Nature Photonics
Additional Journal Information:
Journal Volume: 13; Journal Issue: 1; Journal ID: ISSN 1749-4885
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Quantum cascade lasers; Semiconductor lasers; Sub-wavelength optics

Citation Formats

Khalatpour, Ali, Reno, John L., and Hu, Qing. Phase-locked photonic wire lasers by π coupling. United States: N. p., 2018. Web. doi:10.1038/s41566-018-0307-0.
Khalatpour, Ali, Reno, John L., & Hu, Qing. Phase-locked photonic wire lasers by π coupling. United States. https://doi.org/10.1038/s41566-018-0307-0
Khalatpour, Ali, Reno, John L., and Hu, Qing. Mon . "Phase-locked photonic wire lasers by π coupling". United States. https://doi.org/10.1038/s41566-018-0307-0. https://www.osti.gov/servlets/purl/1633982.
@article{osti_1633982,
title = {Phase-locked photonic wire lasers by π coupling},
author = {Khalatpour, Ali and Reno, John L. and Hu, Qing},
abstractNote = {The term photonic wire laser is now widely used for lasers with transverse dimensions much smaller than the wavelength. As a result, a large fraction of the mode propagates outside the solid core. In this paper, we propose and demonstrate a scheme to form a coupled cavity by taking advantage of this unique feature of photonic wire lasers. In this scheme, we used quantum cascade lasers with antenna-coupled third-order distributed feedback grating as the platform. Inspired by the chemistry of hybridization, our scheme phase-locks multiple such lasers by π coupling. With the coupled-cavity laser, we demonstrated several performance metrics that are important for various applications in sensing and imaging: a continuous electrical tuning of ~10 GHz at ~3.8 THz (fractional tuning of ~0.26%), a good level of output power (~50–90 mW of continuous-wave power) and tight beam patterns (~100 of beam divergence).},
doi = {10.1038/s41566-018-0307-0},
journal = {Nature Photonics},
number = 1,
volume = 13,
place = {United States},
year = {Mon Dec 10 00:00:00 EST 2018},
month = {Mon Dec 10 00:00:00 EST 2018}
}

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Cited by: 19 works
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