LEE, S LEE, SY PARK, HL CHOI, WJ LEE, JI KANG, KN 2024-01-21T22:17:01Z 2024-01-21T22:17:01Z 2021-09-02 1993-08 0374-4884 https://pubs.kist.re.kr/handle/201004/146009 The first theoretical study of the modulation characteristics in a tunable multisection distributed Bragg reflector (DBR) laser, when the lasing wavelength changes continuously, is presented. Taking into account both the possibility of the laser operation away from the gain maximum and the nonlinear gain compression effect, we analyze the small-signal frequency and the intensity modulation (FM/IM) characteristics. It is found that the FM efficiency decreases and that the modulation bandwidth increases with increasing bias current to the passive section(s). The resonance peak and the phase shift decrease as the effect of nonlinear gain compression increases. These characteristics are not affected by changing the lasing wavelength continuously. English KOREAN PHYSICAL SOC SEMICONDUCTOR-LASERS FREQUENCY SINGLE PHASE GAIN MODULATION CHARACTERISTICS OF A TUNABLE MULTISECTION DBR LASER Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.26, no.4, pp.328 - 335 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 26 4 328 335 scie A1993LR89300006 Physics, Multidisciplinary Physics Article SEMICONDUCTOR-LASERS FREQUENCY SINGLE PHASE GAIN DBR laser