Compact 100Gb/s DP-QPSK integrated receiver module employing three-dimensional assembly technology.

Area of Science:

• Photonics and Optical Communications
• Integrated Optics
• High-Speed Data Transmission

Background:

• The increasing demand for data transmission requires smaller and more efficient optical receiver modules.
• Existing modules face challenges in miniaturization and maintaining performance at high data rates.

Purpose of the Study:

• To demonstrate a compact and high-performance receiver module for dual-polarization quadrature phase shift keying (DP-QPSK) signals.
• To reduce the physical footprint of optical receiver modules without compromising demodulation accuracy.

Main Methods:

• Utilized a ball grid array (BGA) package combined with three-dimensional assembly technology for module integration.
• Employed a heterogeneous integrated planar lightwave circuit (PLC) to achieve high functionality in a small volume.
• Integrated key optical components necessary for DP-QPSK signal reception and demodulation.

Main Results:

• Successfully demonstrated a highly compact receiver module measuring only 18 mm (W) x 16 mm (D) x 2.8 mm (H).
• Achieved error-free demodulation of 100 Gbit/s DP-QPSK signals, validating the module's performance.
• The miniaturization was enabled by advanced packaging and heterogeneous integration techniques.

Conclusions:

• The developed compact DP-QPSK receiver module represents a significant advancement in optical communication hardware.
• The combination of BGA packaging, 3D assembly, and heterogeneous integrated PLC offers a viable path towards smaller, high-capacity optical transceivers.
• This technology enables higher port densities and reduced form factors in next-generation optical networks.