RF crosstalk in multiple-wavelength vertical-cavity surface-emitting laser arrays

被引：3
|
作者：
Nakagawa, S [1 ]
Hu, SY [1 ]
Louderback, D [1 ]
Coldren, LA [1 ]
机构：
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2000年 / 12卷 / 06期
关键词：
crosstalk; integrated optoelectronics; laser arrays; optical interconnections; vertical-cavity surface-emitting lasers; wavelength-division multiplexing;
D O I：
10.1109/68.849060
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present the crosstalk measured in multiple-wavelength vertical-cavity surface-emitting laser (VCSEL) arrays under RF modulation. The array consists of eight bottom-emitting VCSEL's arranged with a "pie"-like configuration within a 60-mu m-diameter circle with a 3-mu m spacing for coupling into a multimode fiber. The crosstalk is investigated by measuring a cross-modulation response of two VCSEL's in the array using a monochromator in an optical spectrum analyzer as a receiver. Excess crosstalk is minimized by flip-chip mounting the array and introducing a proper bias condition. The crosstalk observed in the adjacent VCSEL's is less than -40 dB at the modulation frequency below 700 MHz and it increases at 20 dB/decade above this frequency when both VCSEL's are biased at 5.0 mA.
引用
收藏
页码：612 / 614
页数：3
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