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Syntune

Syntune S4500 – Preliminary

C-band tunable 10 Gb/s transmitter

S4500

The Syntune S4500 is the next logical step on the path to increased density and reduced cost for DWDM transmission: a full C-band tunable 10 Gb/s transmitter module. The device is based on Syntune's patented modulated grating Y-branch (MG–Y) laser, which is tuned by current injection.

In the S4500, a semiconductor optical amplifier (SOA) and Mach-Zehnder modulator are monolithically integrated on the laser chip. The SOA gives the device a high output power (> 4 dBm), and allows light to be blocked while tuning from one channel to another. The zero chirp modulator provides 10 Gb/s transmission across the entire tuning range with dispersion penalties < 2 dB over a dispersion range from -800 to +800 ps/nm, with low driving voltages (< 3.5 V).

The devices are packaged into a compact, low-profile hermetically sealed package, with an integrated optical isolator and wavelength locker, which allows the emission frequency to be stabilised to within ±2.5 GHz over life.

 

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For more information please contact our sales department at sales@syntune.com

Key features

  • Full C-band tuning (89 channels at 50 GHz spacing)
  • Zero chirp 10 Gb/s transmission across the entire tuning range
  • High extinction ration > 11 dB
  • Low modulator drive voltages < 3.5 V
  • Low power consumption
  • High side-mode suppression ratio > 40 dB
  • Dark tuning by reverse biasing the integrated amplifier (> 40 dB suppression)
  • Fast tuning, inherent laser switching time < 50 ns
  • Integral wavelength locker, allowing stabilisation to within ±2.5 GHz over life, compatible with 50 GHz ITU grid spacing

Applications

  • DWDM transmission systems
  • Tunable DWDM transponders and transceivers
  • Dynamic provisioning and wavelength routing in metro DWDM systems
  • Reconfigurable optical add/drop multiplexers (ROADM)
  • Optical packet or burst-mode switching