Automatic COS Chips Testing System

Our company’s independently developed Automatic COS Chips Testing System (Model: OA7000-COS). This system offers full automation for COS chip testing, replacing traditional manual testing. The system enables automatic measurement of luminous power, center wavelength, and fast/slow axis divergence angles.
The system’s primary functional modules consist of automatic feeding, water dispensing, automatic testing and state judgement, water wiping, automated return to the original position or classification box, uploading of relevant data to the database, as well as manual debugging function modules.

The system can be seamlessly compatible with our independently developed fully automatic OCR character recognition system, providing a highly efficient replacement for traditional manual observation and recording through high-magnification microscopes. This ensures 100% traceability for each COS.

Wavelength differences at varying current levels

This system is capable of automatic identification of the position and encoding of the COS, as well as automatic suction of the COS into the temperature-controlled fixture. Additionally, the system can automatically power on and read power and spectral data at different current (voltage) levels, scan the horizontal and vertical divergence angles, and save all required data to the client’s database. The system can also automatically judge the pass/fail results of the COS tests and separate them into different trays for repeated testing until all the COS in the trays have been tested;
In case of malfunction, such as a failure to suction the COS, no current or short circuit during power on, the program can provide an alarm prompt, automatically stop, and suggest possible solutions;
The system can automatically identify the position and number of the COS, sequentially suck the COS into the temperature-controlled fixture for COS testing according to specified requirements, and ensure that the COS is not damaged during the suction and testing process;
The system can automatically scan the horizontal and vertical divergence angles, save the data, and upload it automatically, while also automatically testing the polarization;

Testing time (under 25A)

The COS placement fixture is flat and guarantees excellent heat dissipation. When the COS is powered on for testing, the system can effectively control its temperature to ensure that the wavelength difference of the COS is within 4.5nm when tested at 15A and 5A, respectively;
The system is designed to automatically apply power to the COS, gradually increasing the current from low to the rated value. The rated current can be adjusted, and the current increment can also be adjusted with a minimum increment of 0.1A. The current increment can be adjusted in stages; for example, the current increment is set to 0.5A when the current is between 1A and 5A, and 0.1A when the current is between 5A and 10A. Each adjustment of the current increment requires obtaining parameters such as COS power and wavelength, which are then plotted as a dynamic curve with the current value as the x-axis and the COS power and wavelength as the y-axis. The wavelength measurement range is also adjustable;
The system can automatically adjust the base position, suck in the next COS, and initiate the next testing procedure; Once the testing is completed, the system automatically powers off, and places the COS back into the original position or sequentially puts them into a waste bin, ensuring that the client’s chips are not damaged during this process.

Name	Automatic COS Chips Testing System
Model	OA7000 – COS
Pressure range	0.6 ± 0.1 MPa
Rated voltage	220V / 16A
Rated Power	1.8 KW
Power supply	(198~242) VAC，50Hz
Vacuum source	-0.07Mpa
Network	Cat5/6
Outline dimension	W800xD1000xH1685mm (excluding the expanded portion of the observation window and the display)
Weight	270kg
Operating environment	Avoid high temperatures and ensure good lighting in the working area Do not expose the equipment to moisture and do not use it in workshops without adequate rain protection measures For indoor use only
Equipment structural requirements	The equipment’s structural layout should be reasonable, with no interference between modules, and with sufficient clearance
Other requirements	① The equipment’s design and manufacturing should feature advanced mechanical structure, process manufacturing, control systems, and user-friendly design, while ensuring safe operation ② The necessary standard configuration for the equipment’s normal use must be complete and matching, including all corresponding accessories, cables, tools, and spare parts

S/N	Name	Remarks
1	Rotation arm	Measurement of the chip’s divergence angle (Fast axis)
2	Material handling fixture	Chip suction
3	Power-on section	Real-time adjustments to the position of the chips are made using a manual displacement stage for precise alignment
4	Rotation arm	Measurement of the chip’s divergence angle (Slow axis)
5	Water droplet dispensing device	Chip heat dissipation
6	Polarizing ball cylinder	Travel: 30mm
7	Polarizing mirror	Test the polarization degree of COS
8	Focusing mirror	Focused light passes through the polarizing mirror
9	Horizontal axis	Travel: 100°, Positioning accuracy: 0.0072°
10	Vertical axis	Travel: 100°, Positioning accuracy: 0.0072°
11	Water droplet dispensing axis	Travel: 70mm, Positioning accuracy: 0.72°
12	X axis	Travel: 50mm Resolution: {Full/Half: 4μm/2μm, Microstep (1/20 Microstepping) 0.2μm}
13	Y axis	Travel: 300mm Resolution: {Full/Half: 4μm/2μm, Microstep (1/20 Microstepping) 0.2μm}
14	Z axis	Travel: 15mm Resolution: {Full/Half: 2μm/1μm, Microstep (1/20 Microstepping) 0.1μm}