Highly unbalanced GaAlAs–GaAs integrated Mach–Zehnder interferometer for coherence modulation at 1.3 μm
- Resource Type
- Authors
- Miroslaw A. Karpierz; H. Porte; P. Dubreuil; Sabry Khalfallah; Antonio Munoz-Yague; Chantal Fontaine; Bruno Bêche; Rafal Warno; René Legros
- Source
- Optics Communications
Optics Communications, Elsevier, 1999, 167 (1-6), pp.67-76. ⟨10.1016/S0030-4018(99)00284-9⟩
Optics Communications, 1999, 167 (1-6), pp.67-76. ⟨10.1016/S0030-4018(99)00284-9⟩
- Subject
- Optical fiber
Optical communication
02 engineering and technology
Mach–Zehnder interferometer
01 natural sciences
law.invention
[SPI.MAT]Engineering Sciences [physics]/Materials
010309 optics
020210 optoelectronics & photonics
Optics
law
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
Physics
business.industry
Superluminescent diode
Atomic and Molecular Physics, and Optics
[PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]
Electronic, Optical and Magnetic Materials
Transverse mode
Interferometry
Modulation
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic
business
Coherence (physics)
- Language
- English
- ISSN
- 0030-4018
International audience; A novel integrated III–V semiconductor waveguide modulator specially designed to generate an optical delay of 100 μm is presented. This is achieved by simultaneous propagation of the TE fundamental mode in both of the arms of a highly unbalanced Mach–Zehnder interferometer with a 29 μm length difference between both arms. In order to minimize the losses in this complex curved structure, trenches were etched on the outsides of curved sections. The modulator has a contrast of 34%, a switching voltage of 6 V with a 10 mm long electrode and is suitable for the transmission and multiplexing of signals by coherence modulation of light in an optical fiber network powered by a short coherence source, such as a 1.3 μm superluminescent diode.