CAJ | 학술논문

报道了采用选区外延生长技术制作的可实用的单脊条形电吸收调制DFB激光器。激光器的阈值为26 mA，最大光功率可达9 mW，消光比可达16 dB。减小端面的光反馈后，从自发发射谱上观察不到波长随调制电压的变化，调制器部分的电容为1.5 pF，初步筛选结果显示阈值、隔离电阻、消光比基本没有变化，可应用在2.5 Gb/s的长途干线光纤传输系统上。
보도료채용선구외연생장기술제작적가실용적단척조형전흡수조제DFB격광기。격광기적역치위26 mA，최대광공솔가체9 mW，소광비가체16 dB。감소단면적광반궤후，종자발발사보상관찰불도파장수조제전압적변화，조제기부분적전용위1.5 pF，초보사선결과현시역치、격리전조、소광비기본몰유변화，가응용재2.5 Gb/s적장도간선광섬전수계통상。
The monolithic single ridge stripe electroabsorption modulated DFB laser (EML′s) fabricated by selective area LP-MOVPE is reported. The threshold current of the EML′s is 26 mA; the maximum output power is about 9 mW; the extinction ratio is more than 16 dB; no wavelength shift with modulator bias is observed from the ASE spectrum after the optical feedback being reduced; the capacitance of the modulator part is 1.5 pF. No obvious changes of threshold current, isolation resistance and extinction ratio are observed after the preliminary aging test. The EML′s can be used in the 2.5 Gb/s long haul fiber communication systems.