Improvement of Nonlinear Modulation by Cascaded Mach-Zehnder Configuration
| Autor: | Ching-Ting Lee How-Chiang Lee Lih-Gen Sheu |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Physics
Pulse-frequency modulation Analog transmission business.industry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Amplitude modulation Optics Delta modulation Pulse-amplitude modulation business Pulse-density modulation Pulse-width modulation Quadrature amplitude modulation |
| Zdroj: | Fiber and Integrated Optics. 17:119-130 |
| ISSN: | 1096-4681 0146-8030 |
| DOI: | 10.1080/014680398244993 |
| Popis: | A two-stage cascaded Mach-Zehnder modulator is employed for the linear external modulation of a laser. The modulation electric fields are applied on the first and second stages in the Z and Y directions, respectively. Because of the inherent versatility of the adjustable modulation parameters, improved modulation perfor mances with a high modulation depth and a high linear response are demonstrated. When a modulation depth of 21 % is required, the ratios of the second and third harmonic terms to the fundamental term can be simultaneously achieved as low as 104 and 86.7 dB, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|