TY - JOUR
T1 - Minimization of damping in the electrooptic frequency response of high-speed Zn-diffusion single-mode vertical-cavity surface-emitting lasers
AU - Shi, Jin Wei
AU - Yang, L. C.
AU - Chen, C. C.
AU - Wu, Y. S.
AU - Guol, S. H.
AU - Yang, Ying Jay
N1 - Funding Information:
Manuscript received July 12, 2007; revised September 3, 2007. This work was sponsored by the National Science Council of Taiwan under Grant NSC 96-2120-M-002-009-and Grant NSC 95-2221-E-008-121-MY3. J.-W. Shi, L.-C. Yang, C.-C. Chen, and Y.-S. Wu are with the Department of Electrical Engineering, National Central University, Taoyuan 320, Taiwan, R.O.C. (e-mail: [email protected]). S.-H. Guol is with Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C. Y.-J. Yang is with Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C. Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LPT.2007.910087
PY - 2007/12/15
Y1 - 2007/12/15
N2 - We utilize the Zn-diffusion technique to fabricate a single-mode high-speed 850-nm vertical-cavity surface-emitting laser. With this technique, we are able to minimize the thermal effect without greatly scaling down the diameter of the oxide-confined aperture. The demonstrated device has a 9-μm active diameter with which we can attain a bandwidth of 8 GHz, a small differential resistance (∼47 Ω), and a maximum output power of 3 mW. The single-mode characteristics can be sustained under dynamic operation for the whole bias current range. The dynamic measurement results indicate that with this single-mode device the damping-limited bandwidth of our multimode control can be eliminated without a Zn-diffusion aperture. A larger intrinsic bandwidth (32 versus 21 GHz) is also obtained due to the minimization of damping. The narrower divergence angle (8° versus 20° ) means that the device exhibits a larger alignment tolerance and much lower coupling loss (9 dB) when used with the standard multimode fiber than those of the control sample.
AB - We utilize the Zn-diffusion technique to fabricate a single-mode high-speed 850-nm vertical-cavity surface-emitting laser. With this technique, we are able to minimize the thermal effect without greatly scaling down the diameter of the oxide-confined aperture. The demonstrated device has a 9-μm active diameter with which we can attain a bandwidth of 8 GHz, a small differential resistance (∼47 Ω), and a maximum output power of 3 mW. The single-mode characteristics can be sustained under dynamic operation for the whole bias current range. The dynamic measurement results indicate that with this single-mode device the damping-limited bandwidth of our multimode control can be eliminated without a Zn-diffusion aperture. A larger intrinsic bandwidth (32 versus 21 GHz) is also obtained due to the minimization of damping. The narrower divergence angle (8° versus 20° ) means that the device exhibits a larger alignment tolerance and much lower coupling loss (9 dB) when used with the standard multimode fiber than those of the control sample.
KW - Semiconductor laser
KW - Vertical-cavity surfaceemitting laser (vcsel)
UR - http://www.scopus.com/inward/record.url?scp=65449136532&partnerID=8YFLogxK
U2 - 10.1109/LPT.2007.910087
DO - 10.1109/LPT.2007.910087
M3 - 期刊論文
AN - SCOPUS:65449136532
SN - 1041-1135
VL - 19
SP - 2057
EP - 2059
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 24
ER -