The multiheterodyne beatnote between two frequency combs having pulses sliding one with respect to another is used to perform spectrally resolved ranging of diffuse reflectors at short distances. The sliding comb sources are generated using one mode-locked laser and a two-beam interferometer, but two properly controlled lasers could be used as well. A pseudo-random binary modulation of the pulses is used to increase the non-ambiguous range. Ranging with a spatial resolution of 21 cm and a spectral resolution of 10 cm⁻¹ over a 200 cm⁻¹ spectral range is demonstrated.

© 2010 Optical Society of America

1. F. Keilmann, C. Gohle, and R. Holzwarth, “Time-domain mid-infrared frequency-comb spectrometer,” Opt. Lett. 29, 1542–1544 (2004). [CrossRef] [PubMed]
2. I. Coddington, W. C. Swann, and N. R. Newbury, “Coherent Multiheterodyne Spectroscopy Using Stabilized Optical Frequency Combs,” Phys. Rev. Lett. 100, 013,902 1–4 (2008). [CrossRef]
3. P. Giaccari, J.-D. Deschenes, P. Saucier, J. Genest, and P. Tremblay, “Active Fourier-transform spectroscopy combining the direct RF beating of two fiber-based mode-locked lasers with a novel referencing method,” Opt. Express 16, 4347–4365 (2008). [CrossRef] [PubMed]
4. I. Coddington, W. C. Swann, L. Nenadovic, and N. R. Newbury, “Rapid and precise absolute distance measurements at long range,” Nature Photonics 3, 351–356 (2009). [CrossRef]
5. M. Cui, M. G. Zeitouny, N. Bhattacharya, S. A. van den Berg, H. P. Urbach, J. J. M. Braat, “High-accuracy long-distance measurements in air with a frequency comb laser,” Opt. Lett. 34, 1982–1984 (2009). [CrossRef] [PubMed]
6. C. Nagasawa, M. Abo, H. Yamamoto, and O. Uchino, “Random modulation cw lidar using new random sequence,” Appl. Opt. 29, 1466–1470 (1990). [CrossRef] [PubMed]
7. S. W. Golomb and G. Gong, Signal Design for Good Correlation: For Wireless Communication, Cryptography, and Radar, 1st ed. (Cambridge University press, 2005). [CrossRef]

Appl. Opt.

• C. Nagasawa, M. Abo, H. Yamamoto, and O. Uchino, “Random modulation cw lidar using new random sequence,” Appl. Opt. 29, 1466–1470 (1990). [CrossRef] [PubMed]

Nature Photonics

• I. Coddington, W. C. Swann, L. Nenadovic, and N. R. Newbury, “Rapid and precise absolute distance measurements at long range,” Nature Photonics 3, 351–356 (2009). [CrossRef]

Opt. Express

• P. Giaccari, J.-D. Deschenes, P. Saucier, J. Genest, and P. Tremblay, “Active Fourier-transform spectroscopy combining the direct RF beating of two fiber-based mode-locked lasers with a novel referencing method,” Opt. Express 16, 4347–4365 (2008). [CrossRef] [PubMed]

Opt. Lett.

• M. Cui, M. G. Zeitouny, N. Bhattacharya, S. A. van den Berg, H. P. Urbach, J. J. M. Braat, “High-accuracy long-distance measurements in air with a frequency comb laser,” Opt. Lett. 34, 1982–1984 (2009). [CrossRef] [PubMed]
• F. Keilmann, C. Gohle, and R. Holzwarth, “Time-domain mid-infrared frequency-comb spectrometer,” Opt. Lett. 29, 1542–1544 (2004). [CrossRef] [PubMed]

Other

• I. Coddington, W. C. Swann, and N. R. Newbury, “Coherent Multiheterodyne Spectroscopy Using Stabilized Optical Frequency Combs,” Phys. Rev. Lett. 100, 013,902 1–4 (2008). [CrossRef]
• S. W. Golomb and G. Gong, Signal Design for Good Correlation: For Wireless Communication, Cryptography, and Radar, 1st ed. (Cambridge University press, 2005). [CrossRef]

Click here to see a list of articles that cite this paper

Related Journal Articles

• Interferometric measurements of ¹²⁷I₂ reference frequencies for 1S–2S spectroscopy in muonium, hydrogen, and deuterium (JOSAB)
• Frequency resolution and amplitude accuracy of the coherent optical spectrum analyzer with a swept local oscillator (OL)
• Analysis and observation, on an atomic resonance, of the frequency shift due to the length modulation of an optical cavity (AO)
• Improved wave-number tables of the carbonyl sulfide ν₂ and 2ν₂ bands and guides for accurate measurement (JOSAB)
• Chemical detection with hyperspectral lidar using dual frequency combs (OE)

Related Conference Papers

• Optically induced spin orientation of the nitrogen-vacancy center in diamond
• Optically induced spin orientation of the nitrogen-vacancy center in diamond
• Metrology for the Space Interferometry Mission
• High Sensitivity Vibration Measurements with Absolute Calibration
• Six-fold Spectral Resolution Boosting with an Interferometer upon the Mt. Palomar Near-infrared Spectrograph
• Measuring Precision Wideband Stellar Spectra using a Dispersed Interferometer