CrystalSemi

Founded in Oct 2023, CrystalSemi is dedicated to delivering the state-of-the-art optoelectronic solutions to our world-wide customers. Our products include fixed-wavelength DFB lasers, high-speed EML lasers and high-power EML PON lasers. These products are deployed in AI clusters, 5G wireless communication and sensing applications.

products


100G PAM4 EML Chip

CWDM4 wavelengths
32GHz bandwidth
12.5mW output
Circular spot size


70mW CW DFB Chip

1270, 1290, 1310, 1330nm
70mW output power for If <300mW
0.42W/A slope efficiency @ RT
0-70 degree C operation


25Gbps LAN-WDM
DFB Chip

20GHz 3-dB bandwidth @ 25°C
LWDM wavelength

1550nm
Narrow-linewidth
DFB Chip

Over 100mW output power
150kHz linewidth
Slope efficiency


1310nm/1550nm
SLD Chip/Epi

40mW ASE power
1dB gain ripple
Near circular far field


1653.7nm laser TO Can for Gas Sensing

1653.7 +/- 0.8nm high wavelength precision
0.23 W/A slope efficiency
Chip output power >5mW


450nm High Power Blue DFB Laser Diodes

450nm lasing frequency
5W output power @ 3.7A
1.3 W/A slope efficiency
1.2mm chip length


510nm Green DFB
Laser Diodes

510nm lasing frequency
>300mW output power @ 70mA
300 um chip length


53/100GBaud InGaAs PD Epi

2-inch epi wafer
InGaAs detector
Support 100Gbps or 200Gbps data rate
Wavelength coverage: 900-1650nm
Can provide reference layout
Can provide full PD reliability report


Φ300/500/1000 μm Infrared PD Chip

Φ1000/500/300 μm detection area
High ESD threshold
High responsivity (400nm~1700nm)
Low dark current
Positive illumination
High reliability


1064nm InGaAs/Si
APD Chip

Lare-area
High responsivity
Low capacitance
Low dark current
Top illumination, planar structure

InGaAs/InP Four-Quadrants Monitoring PD Chip

Φ1500、3000、5000μm detection area
High responsivity
Low dark current
High reliability, comply with GR-468-CORE

N-type Si
Four-Quadrants
PIN PD Chip

Φ14000μm detection area
Low dark current
Low capacitance
High responsivity (optimized for 1064nm wavelength)

applications

AI Cluster Optics

5G Wireless

Fiber to the Home (FTTH)

Autonomous Driving

Careers

Laser Physicist

Nanjing
Responsibilities
  • III-V optoelectronic device and process design;
  • Evaluate device performance based on testing outputs and accelerate product literation;
  • Provide guidance and innovative insights to company's advanced research group.
Requirements
  • PhD degree in Optoelectronics/Physics with at least 5 years of industrial experience;
  • Familiar with optoelectronic device design, process integration and failure analysis;
  • Team player, passionate about the optoelectronic industry.

Product Engineer

Nanjing
Responsibilities
  • Perform data analysis on various yield improvement projects;
  • Design reliability experiments, collect and analyze product reliability data, and provide reliability improvement guidance;
  • Drive product failure analysis and complete 8D report in a timely way.
Requirements
  • Bachelors (minimum) degree in Optoelectronics/Physics with at least 5 years of industrial experience;
  • Proficient in data analysis tools such as JMP, Minitab, etc.;
  • Extensive experience in yield improvement, reliability DoE design;
  • Passionate about the industry.

CrystalSemi Inc.

Founded in Oct 2023, CrystalSemi is dedicated to delivering the state-of-the-art optoelectronic solutions to our world-wide customers.

... Singapore Office : Block 55 Ayer Rajah Crescent, Singapore 139949

... Nanjing Office : North 2nd Floor, 7 Tongren West Street, Xuanwu District, Nanjing, Jiangsu Province, China

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