12.5-GHz direct modulation bandwidth of vapor phase regrown 1.3-μm InGaAsP buried heterostructure lasers

Su, C. B.; Lanzisera, V.; Powazinik, W.; Meland, E.; Olshansky, R.; Lauer, R. B.
February 1985
Applied Physics Letters;2/15/1985, Vol. 46 Issue 4, p344
Academic Journal
A small-signal modulation bandwidth of 12.5 GHz is reported for vapor phase regrown 1.3-µm InGaAsP buried heterostructure (BH) lasers operated at a bias optical power of only 6.9 mW/ facet. The bandwidth per square root of bias optical power is a factor of 1.6 higher than previous best results. In addition, the optical modulation amplitude remains flat to 12 GHz in sharp contrast to other types of BH lasers which exhibit signal roll-off at frequencies below the resonance frequency. The wide modulation bandwidth is attained by increasing the p-doping level in the active region and by the choice of short cavity length. The device is grown on a conductive substrate, indicating that it is unnecessary to use a semi-insulating substrate to obtain flat optical response in vapor phase regrown BH lasers.


Related Articles

  • Direct modulation of semiconductor lasers at f>10 GHz by low-temperature operation. Lau, K. Y.; Harder, Ch.; Yariv, A. // Applied Physics Letters;1984, Vol. 44 Issue 3, p273 

    Using a 175-μm-long buried-heterostructure laser fabricated on a semi-insulating substrate operating at -50 °C, a direct amplitude modulation bandwidth in excess of 10 GHz has been achieved.

  • in brief.  // Electronics Letters;2/13/2014, Vol. 50 Issue 4, p236 

    The article offers research briefs including one on four-intensity level pulse amplitude modulation, one on quantum cascade lasers, and one on HEMT mixers.

  • Ultrahigh-efficiency optical modulation (>20 W/A) by interferometric frequency...intensity... Lau, K.Y. // Applied Physics Letters;4/22/1991, Vol. 58 Issue 16, p1715 

    Studies a peculiar amplitude/phase coupling characteristic between the modulated and noise output of gain-levered lasers which leads to a simultaneous increase in the modulation efficiency and a reduction in the intensity noise by interferometric frequency-intensity conversion. Generic geometry...

  • Gradient tuning of the direction of emission from InGaAsP/InP heterolasers. Kulakova, L. A.; Lyutetskiĭ, A. V.; Voloshinov, V. B. // Technical Physics Letters;Jun2010, Vol. 36 Issue 6, p563 

    A new acoustooptical effect in laser heterostructures is revealed, according to which the laser emission direction is modulated by alternating strain that is induced in the laser structure by an external ultrasonic wave. An important feature of the observed phenomenon is that the amplitude of...

  • Short cavity distributed Bragg reflection lasers with a narrow band Bragg mirror: Dynamic.... Tessler, N.; Margalit, M. // Applied Physics Letters;12/12/1994, Vol. 65 Issue 24, p3048 

    Presents the characteristics of distributed Bragg reflector lasers with a narrow band Bragg reflection mirror. Operation of the reflector as an amplitude modulator in the small and large signal modulation regimes; Effectiveness of the mirror in the conventional gain modulation mode; Application...

  • High resonance frequency of push-pull distributed feedback lasers. Chen, Jianyao; Maciejko, Roman; Makino, Toshihiko // Journal of Applied Physics;6/15/1996, Vol. 79 Issue 12, p8914 

    Presents a small signal analysis on the high resonance frequency of push-pull distributed feedback (DFB) lasers. Information on the structure of the DFB laser; Comparison of the amplitude modulation response between the DFB device modulated as a single-contact laser and a two-contact push-pull...

  • A multi-terawatt OPCPA laser system. Leng, Yuxin; Xu, Zhizhan; Yang, Xiaodong; Lu, Haihe; Lin, Lihuang; Zhang, Zhengquan; Li, Ruxin; Zhang, Wenqi; Yin, Dingjun; Tang, Bing // AIP Conference Proceedings;2002, Vol. 641 Issue 1, p569 

    The novel optical parametric chirped pulse amplification (OPCPA) scheme is promising for generating ultra-intense and ultra-short laser pulse. Based on the OPCPA technique, a compact 3.67TW tabletop laser system was developed with an output of the 570m J/155fs per-pulse, which is the highest...

  • Numerical investigation of the self-focusing of broad-bandwidth laser light with applied angular dispersion. McKenty, P. W.; Skupsky, S.; Kelly, J. H.; Cotton, C. T. // Journal of Applied Physics;8/15/1994, Vol. 76 Issue 4, p2027 

    Examines the effects of the broad-bandwidth laser light used in smoothing by spectral dispersion (SSD) on the self-focusing of the beam during propagation through nonlinear optical components in the laser system. Numerical approximation used to characterize and model SSD propagation; Scenarios...

  • Measuring the temporal intensity of ultrashort laser pulses by triple correlation. Feurer, T.; Niedermeier, S.; Sauerbrey, R. // Applied Physics B: Lasers & Optics;1998, Vol. 66 Issue 2, p163 

    Abstract. By measuring the triple correlation of an ultrashort laser pulse, it is possible to determine the temporal envelope of the pulse intensity. No assumptions on the analytic form of the pulse shape and no iterative algorithms are necessary. The method is extremely stable even for noisy...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics