Phase Modulation of Photonic Band Gap Signal.
We first investigate the probe transmission signal (PTS) and the four wave mixing band gap signal (FWM BGS) modulated simultaneously by the relative phase and the nonlinear phase shift in the photonic band gap (PBG) structure. The switch between the absorption enhancement of PTS and the transmission enhancement of PTS with the help of changing the relative phase and the nonlinear phase shift is obtained in inverted Y-type four level atomic system experimentally and theoretically. The corresponding switch in PTS can be used to realize all optical switches. On other hand, the relative phase and the nonlinear phase shift also play the vital role to modulate the intensity of FWM BGS reflected from the PBG structure. And it can be potentially used to realize the optical amplifier.
Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China.|School of Science, Xi'an Jiaotong University, Xi'an 710049, China.
Zhiguo
Z
Wang
Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China.
Mengqin
M
Gao
Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China.
Abdul Rasheed
AR
Mahesar
Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China.
Yanpeng
Y
Zhang