A. Schlatter

Publications (11)16.95 Total impact

• Source

  Available from: ulp.ethz.ch

  Article: Optical phase noise and carrier-envelope offset noise of mode-locked lasers

  R. Paschotta, A. Schlatter, S.C. Zeller, H.R. Telle, U. Keller
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  ABSTRACT: The timing jitter, optical phase noise, and carrier-envelope offset (CEO) noise of passively mode-locked lasers are closely related. New key results concern analytical calculations of the quantum noise limits for optical phase noise and CEO noise. Earlier results for the optical phase noise of actively mode-locked lasers are generalized, particularly for application to passively mode-locked lasers. It is found, for example, that mode locking with slow absorbers can lead to optical linewidths far above the Schawlow–Townes limit. Furthermore, mode-locked lasers can at the same time have nearly quantum-limited timing jitter and a strong optical excess phase noise. A feedback timing stabilization via cavity length control can, depending on the situation, reduce or greatly increase the optical phase noise, while not affecting the CEO noise. Besides presenting such findings, the paper also tries to clarify some basic aspects of phase noise in mode-locked lasers.
  Applied Physics B 04/2012; 82(2):265-273. · 2.19 Impact Factor
• Source

  Available from: ethz.ch

  Article: Compact Er:Yb:glass-laser-based supercontinuum source for high-resolution optical coherence tomography.

  M C Stumpf, S C Zeller, A Schlatter, T Okuno, T Südmeyer, U Keller
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  ABSTRACT: We present a low coherence light source by direct super-continuum generation from a diode-pumped, passively modelocked Er:Yb:glass-laser, which generates 198 fs transform-limited pulses with an average power of 100 mW at a repetition rate of 75 MHz. The pulse train is launched into a dispersion optimized highly nonlinear fiber for spectral broadening. The optical bandwidth spans from 1150 nm to 2400 nm, which is more than one octave. The potential for ultrahigh-resolution optical coherence tomography (OCT) is demonstrated by coherence measurements supporting an axial resolution of 3.5 microm in air.
  Optics Express 08/2008; 16(14):10572-9. · 3.59 Impact Factor
• Source

  Available from: iphy.ac.cn

  Conference Proceeding: Fiber-Broadened Passively Modelocked Er: Yb: Glass Laser for High-Resolution Optical Coherence Tomography

  M.C. Stumpf, S.C. Zeller, A. Schlatter, T. Sudmeyer, U Keller, T. Okuno
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  ABSTRACT: We demonstrate a low coherence light source by directly launching the output of a femtosecond diode-pumped modelocked Er:Yb:glass laser into a highly-nonlinear fiber. The measured interferogram supports a depth resolution of 4 mum in air.
  Lasers and Electro-Optics, 2007. CLEO 2007. Conference on; 06/2007
• Source

  Available from: ulp.ethz.ch

  Article: Simultaneous measurement of the phase noise on all optical modes of a mode-locked laser

  A. Schlatter, S.C. Zeller, R. Paschotta, U. Keller
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  ABSTRACT: We propose and experimentally demonstrate a method to simultaneously measure the relative phase noise of all modes of two mode-locked lasers. The method is based on the numerical analysis of a beat note of two lasers with slightly different pulse repetition rates. We carefully analyze and experimentally demonstrate the potential of this method. Compared to other methods, it has the unique advantage that it provides access to correlations of the phases of different modes.
  Applied Physics B 01/2007; 88(3):385-391. · 2.19 Impact Factor
• Conference Proceeding: Octave spanning supercontinuum from compact passively mode-locked Er:Yb:glass laser

  S.C. Zeller, A. Schlatter, L. Krainer, G.J. Spuhler, T. Sudmeyer, U. Keller, T. Okuno
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  ABSTRACT: By using a recently developed nonlinear fiber, we achieve octave-spanning spectrum directly from a diode-pumped passively mode-locked 250-fs Er:Yb:glass laser without any amplification stage. Applications for CEO phase stabilization and optical clocking are discussed.
  Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on; 06/2006
• Source

  Available from: Gabriel Spuehler

  Article: Nearly quantum-noise-limited timing jitter from miniature Er:Yb:glass lasers.

  A Schlatter, B Rudin, S C Zeller, R Paschotta, G J Spühler, L Krainer, N Haverkamp, H R Telle, U Keller
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  ABSTRACT: We report on nearly quantum-limited timing-jitter performance of two passively mode-locked Er:Yb:glass lasers with a repetition rate of 10 GHz. The relative timing jitter of both lasers was measured to be 190 fs (100 Hz-1.56 MHz) root mean square. The remaining cavity-length fluctuations are below 7.5 pm in the 6 Hz-8 kHz frequency range, indicating the stability of a rugged miniature cavity setup. By actively controlling the cavity length we reduced the timing jitter to 26 fs (6 Hz-1.56 MHz). We also discuss the influence of cavity length on the practically achievable timing jitter.
  Optics Letters 07/2005; 30(12):1536-8. · 3.40 Impact Factor
• Conference Proceeding: Passively mode-locked multi-GHz 1.3-μm Nd:vanadate lasers with low timing jitter

  L. Krainer, G.J. Spuhler, V. Liverini, S. Schon, R. Grange, M. Haiml, A. Schlatter, R. Paschotta, U. Keller, S. Pawlik, B. Schmidt
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  ABSTRACT: We demonstrate diode-pumped, passively mode-locked 1.34-μm Nd: YVO₄ lasers with repetition rates of 5 and 10 GHz and low timing jitter. Passive mode locking is achieved by using a novel GaInNAs-based saturable absorber mirror.
  Lasers and Electro-Optics, 2005. (CLEO). Conference on; 06/2005
• Conference Proceeding: Nearly quantum-limited noise performance of passively mode-locked 10-GHz Er:Yb:glass lasers

  E. Benkler, N. Haverkamp, H.R. Telle, R Paschotta, B. Rudin, A. Schlatter, S.C. Zeller, G.J. Spuhler, L. Krainer, U Keller
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  ABSTRACT: The repetition phase noise and carrier phase noise of a passively mode-locked Er:Yb:Glass laser has been investigated. A nearly quantum-limited noise performance was found at high Fourier frequencies where technical noise contributions are negligible.
  Lasers and Electro-Optics, 2005. (CLEO). Conference on; 06/2005
• Conference Proceeding: Nearly quantum-limited timing jitter of passively mode-locked 10-GHz diode-pumped Er:Yb:glass lasers

  R Paschotta, B. Rudin, A. Schlatter, S.C. Zeller, G.J. Spuhler, L. Krainer, U Keller
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  ABSTRACT: A novel measurement scheme demonstrates that the timing jitter of free-running passively mode-locked 10-GHz Er:Yb:glass lasers can be close to the quantum limit. With feedback stabilization, even lower jitter (27 fs rms, 6 Hz-1.56 MHz) is achieved.
  Optical Fiber Communication Conference, 2005. Technical Digest. OFC/NFOEC; 04/2005
• Source

  Available from: Matthias Golling

  Article: Passively mode-locked 914-nm Nd:YVO4 laser.

  A Schlatter, L Krainer, M Golling, R Paschotta, D Ebling, U Keller
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  ABSTRACT: We demonstrate what is to our knowledge the first mode-locked Nd:YVO4 laser operating on the 4F3/2-4I9/2 transition at 914 nm. Using a semiconductor saturable-absorber mirror for passive mode locking, we have obtained 3-ps pulses at a repetition rate of 233.8 MHz. The laser is based on a standard delta cavity and is pumped by a Ti:sapphire laser. We obtained an average output power of 42 mW through one mirror and an accumulated output power of approximately 150 mW (through all cavity mirrors) at a pump power of 1.4 W.
  Optics Letters 02/2005; 30(1):44-6. · 3.40 Impact Factor
• Source

  Available from: Gabriel Spuehler

  Article: Relative timing jitter measurements with an indirect phase comparison method

  R. Paschotta, B. Rudin, A. Schlatter, G.J. Spühler, L. Krainer, S.C. Zeller, N. Haverkamp, H.R. Telle, U. Keller
  [show abstract] [hide abstract]
  ABSTRACT: We propose and demonstrate experimentally a method for the sensitive measurement of the relative timing jitter of two mode-locked lasers, which can be either free-running or timing-synchronized to a common reference oscillator. The method is based on the indirect comparison of the phases of two photodetector outputs, using a microwave oscillator, the noise of which does not affect the results, electronic mixers, and a sampling oscilloscope. We carefully analyze and experimentally demonstrate the potential of this method. Compared to phase detector methods, it has a broader scope of applications and a lower sensitivity to intensity noise. We also obtained data on the coupling of intensity to timing noise in photodetectors.
  Applied Physics B 01/2005; 80(2):185-192. · 2.19 Impact Factor