DPMZ Modulator

      The dual parallel Mach-Zehnder (DPMZ) modulator is ideally suited for use in metro, long-haul (LH) and ultra long-haul (ULH) optical transport applications.It also has some advantages in spectrally efficient multisymbol transmission based on differential quadrature phase shift keying (DQPSK) modulation.
      The Dual Parallel Mach-Zehnder (DPMZ) Modulator has some key features. Here gives six of those. The first one is Monolithically integrated, parallel, high-speed MZ modulators, with a phase modulator superstructure. The second one is High-speed MZ modulators with matching amplitude an phase response. The third one is High electro-optic bandwidth. The fourth one is Compatible with full band tunable lasers. The fifth one is Integrated RF power monitors for precision control, And the last one is Single-sided electrical I/O.
      Next gives some application of the 2213 Series. Such as the 40 Gbps metro, regional and LH optical networks, the 10 Gbps ULH optical networks and the Spectrally efficient DQPSK modulation
The Dual Parallel Mach-Zehnder (DPMZ) Modulator has its Absolute Maximum/Minimum Ratings of some important parameters. The Operating temperature, whose minimum is 0°C and the maximum is 75°C. The Storage temperature, its minimum and maximum is  -40°C and 85°C.The RF input power has its maximum which is  - 24 dBm, and the Optical input power's maximum is - 16 dBm.
      Addtion information about the DPMZ Modulator, it is comprised of two matched, high-speed Mach-Zehnder (MZ) modulators that are monolithically integrated, in parallel, inside an MZ superstructure. The MZ superstructure also functions as a phase (shifter) modulator. DPMZ modulators are specifically designed to yield well-behaved and matching electro-optic amplitude and phase responses over a 20 GHz frequency range and to have enhanced extinction ratios. The DPMZ is available with either single- mode or polarization maintaining output fiber.
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