Balanced Photoreceivers with 14 & 20 GHz Bandwidth

Description:

A low-noise, 15 dB gain balanced photoreceiver for wavelengths from 800nm to 1650nm with over 14 or 20 GHz bandwidth.  The optical signal is converted to electrical signals in identical wide-bandwidth InGaAs PIN diodes.  The signals are then combined and amplified with 15 dB of power gain, rejecting common-mode noise, thus improving link SNR

Salient Features:

• Lowest PDL (typical 0.05 dB)
• Normalized CMRR exceeds 30 dB
• Useable spectral wavelength range of 800-1650 nm
• Improves sensitivity by canceling DC portion of RIN and ASE noise
• Small form-factor fiber-pigtailed package
• Hermetically sealed and built to GR-468 standards
• One device for multiple wavelengths reduces operational and inventory cost

Applications:

• DPSK/DQPSK: Differential Phase/Polarization Shift Keying or Differential Quadrature Phase Shift Keying
• Rapid Doppler-shift LIDAR measurements
• Coherent Lightwave Systems

Available Models:

• DSC-R405 - Balanced Photoreceivers with 14 GHz Bandwidth
• DSC-R405ER - Balanced Photoreceivers with 20 GHz Bandwidth

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DSC-R405 10.7 Gb/s RZ-DPSK Eye Diagram:


In: -3 dBm average optical power per photodiode
Out: 400 mVp-p

Typical Frequency Response Curves & Common Mode Rejection:

For busy test stations or student labs, where users of different experience levels might be handling high value opto-electronics that are easily damaged by mishandling, order your photodiode to be mounted in the Lab Buddy.