Yoshitomo Okawachi

Summary

Affiliation: Cornell University
Country: USA

Publications

  1. doi request reprint Asynchronous single-shot characterization of high-repetition-rate ultrafast waveforms using a time-lens-based temporal magnifier
    Yoshitomo Okawachi
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 37:4892-4. 2012
  2. doi request reprint Octave-spanning frequency comb generation in a silicon nitride chip
    Yoshitomo Okawachi
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 36:3398-400. 2011
  3. doi request reprint Broadband parametric frequency comb generation with a 1-μm pump source
    Kasturi Saha
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853 USA
    Opt Express 20:26935-41. 2012
  4. doi request reprint Modelocking and femtosecond pulse generation in chip-based frequency combs
    Kasturi Saha
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 21:1335-43. 2013
  5. ncbi request reprint High-resolution spectroscopy using a frequency magnifier
    Yoshitomo Okawachi
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 17:5691-7. 2009
  6. doi request reprint Ultralong continuously tunable parametric delays via a cascading discrete stage
    Yitang Dai
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 18:333-9. 2010
  7. doi request reprint Spectral phase conjugation via temporal imaging
    Onur Kuzucu
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 17:20605-14. 2009
  8. ncbi request reprint Chip-based frequency combs with sub-100 GHz repetition rates
    Adrea R Johnson
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 37:875-7. 2012
  9. doi request reprint Continuous-wave mid-infrared frequency conversion in silicon nanowaveguides
    Ryan K W Lau
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 36:1263-5. 2011
  10. doi request reprint Demonstration of temporal cloaking
    Moti Fridman
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Nature 481:62-5. 2011

Collaborators

  • Yitang Dai
  • Onur Kuzucu
  • Moti Fridman
  • Alexander L Gaeta
  • Kasturi Saha
  • Michal Lipson
  • Jacob S Levy
  • Adrea R Johnson
  • Mark A Foster
  • Bonggu Shim
  • Ryan K W Lau
  • Reza Salem
  • Imad H Agha
  • Michael R E Lamont
  • Kevin Luke
  • Jaime Cardenas
  • Luat T Vuong
  • Samuel E Schrauth
  • Amy C Turner-Foster
  • Michaël Ménard

Detail Information

Publications13

  1. doi request reprint Asynchronous single-shot characterization of high-repetition-rate ultrafast waveforms using a time-lens-based temporal magnifier
    Yoshitomo Okawachi
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 37:4892-4. 2012
    ..We measure a 225 GHz repetition-rate pulse train from a microresonator-based frequency comb. In addition, we show that such a system can be used as a frequency compressor for real-time, high-speed RF spectral characterization...
  2. doi request reprint Octave-spanning frequency comb generation in a silicon nitride chip
    Yoshitomo Okawachi
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 36:3398-400. 2011
    ..In addition, we investigate the RF amplitude noise characteristics of the parametric comb and find that the comb can operate in a low-noise state with a 30 dB reduction in noise as the pump frequency is tuned into the cavity resonance...
  3. doi request reprint Broadband parametric frequency comb generation with a 1-μm pump source
    Kasturi Saha
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853 USA
    Opt Express 20:26935-41. 2012
    ..The comb spans 55 THz with a 230-GHz free spectral range. These results demonstrate the powerful advantage of dispersion engineering in chip-based devices for producing combs with a wide range of pump wavelengths...
  4. doi request reprint Modelocking and femtosecond pulse generation in chip-based frequency combs
    Kasturi Saha
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 21:1335-43. 2013
    ..Ultimately, such parametric devices offer the potential of producing ultra-short laser pulses from the visible to mid-infrared regime at repetition rates from GHz to THz...
  5. ncbi request reprint High-resolution spectroscopy using a frequency magnifier
    Yoshitomo Okawachi
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 17:5691-7. 2009
    ..We achieve a magnification factor of 105 with a frequency resolution of 1 GHz. The system offers potential as a tool for single-shot, high resolution spectral measurements...
  6. doi request reprint Ultralong continuously tunable parametric delays via a cascading discrete stage
    Yitang Dai
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 18:333-9. 2010
    ..The wavelength-optimized optical phase conjugation scheme employed in the delay line is capable of minimizing the residual dispersion for the entire tuning range...
  7. doi request reprint Spectral phase conjugation via temporal imaging
    Onur Kuzucu
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 17:20605-14. 2009
    ..By constructing a temporal analog of a 4-f imaging system, we compensate for pulse distortions arising from second- and third-order dispersion and self-phase modulation in optical fibers...
  8. ncbi request reprint Chip-based frequency combs with sub-100 GHz repetition rates
    Adrea R Johnson
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 37:875-7. 2012
    ..These combs represent an important advance towards developing a complementary metal-oxide-semiconductor (CMOS)-based system capable of linking the optical and electronic regimes...
  9. doi request reprint Continuous-wave mid-infrared frequency conversion in silicon nanowaveguides
    Ryan K W Lau
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Opt Lett 36:1263-5. 2011
    ..This report indicates that the advantages of silicon photonics may be leveraged to create devices for a large range of MIR applications that require cw operation...
  10. doi request reprint Demonstration of temporal cloaking
    Moti Fridman
    School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA
    Nature 481:62-5. 2011
    ..These results are a significant step towards the development of full spatio-temporal cloaking...
  11. doi request reprint Theoretical and experimental investigation of broadband cascaded four-wave mixing in high-Q microspheres
    Imad H Agha
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 17:16209-15. 2009
    ..We experimentally demonstrate broadband, cascaded four-wave mixing parametric oscillation in the anomalous group-velocity dispersion regime of a high-Q silica microsphere with an overall bandwidth greater than 200 nm...
  12. ncbi request reprint 1 micros tunable delay using parametric mixing and optical phase conjugation in Si waveguides
    Yitang Dai
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 17:7004-10. 2009
    ....
  13. doi request reprint Dynamics of elliptical beams in the anomalous group-velocity dispersion regime
    Bonggu Shim
    School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
    Opt Express 19:9139-46. 2011
    ..Our theoretical simulations qualitatively reproduce the experimental results showing the highly localized spatio-temporal profile in the anomalous-GVD regime, which contrasts to the weakly localized pulse in the normal-GVD regime...