Direct Optical Wire (DOW)

Today’s data centers is struggling to cope with increasing demands for real-time video streams, machine learning (ML) resources, artificial intelligence (AI), 5G/6G applications, defense and security.

The disruptive innovation of direct optical wiring (DOW) in integrated optical interconnects will fertilize the future.

Direct Optical Wire (DOW) Bonding Technology

  • Cutting-edge metal wire bonding-like optical wire
  • Simple open-to-air polymerization of a polymer solution
  • Nanoscale ultra-thin diameter, as thin as 0.2 μm
  • Robust and reliable thermo-mechanical properties
    -High-temperature/high-humidity resistance up to 250°C
    -Low-temperature resistance of – 70°C

Datacenter Optical Interconnects

Key Features of Direct Optical Wired (DOW) Optical Interconnects

No active
alignment

Cost-competitive
optical coupling

Free from lens
assembly

Nearly zero optical
crosstalk

No
air gap

Very low reflection noise
compared to the others

High freedom of heat
sink design

Advantages in
thermal management

LESSENGERS-
patented technology

37 patents granted/
pending worldwide

Highly-Integrated Low Power Consumption Optical Engines

400G QSFP112 SR4 Optical Transceiver

800G QSFP112-DD SR8 Optical Transceiver

Customized Design Optical Packaging

Ultra-small
form factor optical
interconnects

Less than millimeter
dimension

Cost-competitive
optical coupling

Free from lens
assembly / mold
tooling

No optical
crosstalk / no
air gap-induced noise

Excellent optical
signal integrity

DOW-based Silicon Photonics Optical Coupling

DOW-based Silicon Photonics Optical Coupling

Single-Cell Analysis

Nanometer scale DOW-
prepared optical wire,
enabling single-cell in-
situ analysis

Quantitative single-cell
optical technologies,
e.g., fluorescence
microscopy

Single-Cell In-situ Analysis