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Ushio Opto Semiconductors Releases 659 nm High Power Red Laser Diode

Ushio Opto Semiconductors Releases HL65213HD 659nm High Power Red Laser Diode

Achieving the world’s highest CW optical output power of 1.2 W, enabling a reduction in the size of phototherapy devices

NEWS RELEASE: December 2019

The Optoelectronics Company is delighted to announce that Ushio Opto Semiconductors, Inc. a wholly-owned subsidiary of Ushio, Inc., released a 659 nm red laser diode, HL65213HD, for biomedical use in October 2019, which achieved the world’s highest CW optical output power of 1.2 W*1 in its class..


Demand for high output power laser diodes in the 660 nm wavelength range, including 659 nm, is growing in medical fields such as DNA sequencing and phototherapy and in the life science fields such as laser microscopy and Raman spectroscopy since they can cause a photochemical reaction with materials (e.g., melanin and hemoglobin) with absorption in that wavelength range with high efficiency and in a short time.

These applications require watt-level output power but the output power of the laser diodes in this wavelength range is usually at the milliwatt (mW) level. Therefore, to achieve the watt-level output power, multiple laser diodes are currently used as modules in a single system by connecting them with optical fibers. Its downside is to make the systems larger and more expensive.

To address this problem, Ushio Opto Semiconductors successfully commercialised a highly reliable multi-mode laser diode*2, which achieved a CW optical output power of 1.2 W in the 659 nm wavelength range. This was accomplished by combining the crystal growth technology accumulated through the development and commercialization of laser diodes for use in sensors in the 660 nm wavelength range and the watt-level high output power laser diode process and packaging technology cultivated in the 640 nm wavelength range.

The new product is expected to be adopted in various fields, since it helps reduce the size of various systems.

*1 The world’s highest optical output power from a single CAN package (as of September 2019 according to Ushio Opto Semiconductors’ research data)
*2 LD that has multiple oscillation modes in a waveguide, which is ideal for increasing output power.

download HL65213HD data sheet >


1  The world’s highest CW optical output power of 1.2 W achieved in a 9 mm package. High heat dissipation and air-tightness ensure high reliability and help reduce the size and cost of the light source unit. CW optical output power of 1.2 W and pulse optical output power of 1.5 W were achieved at operating temperatures from -10°C to 25°C. CW optical output power of 1.0 W and pulse optical output power of 1.3 W were achieved at a maximum temperature of 45°C.

2   The world’s highest wall plug efficiency of 39%*3 was achieved and lower power consumption helps simplify the cooling system.

*3  Ratio of optical output power to input power (operating temperature of 25°C during CW operation)



Product model  HL65213HD
CW optical output power 1.2W
Pulse optical output power 1.5W (Pulse period=50Hz, duty=33%)
Emitter quantity 1
Lasing wavelength 659nm
Operating temperature -10 to 45℃
Package 9mm CAN package


Ushio laser diodes

All Ushio high performance laser diodes are available from the Optoelectronics Company. Please contact the Optoelectronics Company to request samples for testing.



Ushio’s laser diode collection offers wavelengths across UV (375–405 nm), red (630–690 nm), and NIR (705–852 nm), with prospective optical output powers from 5 mW to 3,500 mW. Our LD collection has low and high power lasers, with low-operating currents, long lifespans, and efficiency, all while remaining 100% RoHS-compliant.

Ushio’s Epitex division has grown into the largest collection of light emitting diodes on the market. Covering all violet, visible, and infrared wavelengths, from 365 nanometres (nm) to 1,750 nm, this vast catalogue creates a one-stop-shop for single and multi-wavelength LEDs.

https://www.ushio.eu/ , https://swir-led.com/


About The Optoelectronics Company Ltd

The Optoelectronics Company is a manufacturer of custom-designed and standard laser diode modules and laser diode collimators. It is also an authorised distributor and supplier of Ushio Laser Diodes and LEDs, OSRAM laser diodes and Panasonic Aspherical Glass Lenses to customers worldwide.

contact details

For more information about the Optoelectronics Company please visit our website at www.oe-company.com or contact us at: Green End Farm, Wood End Green, Henham, Hertfordshire, CM22 6AY, UK, tel: +44 (0) 1279 851851, email: info@oe-company.com.


This news release is issued in accordance with clause 1.2j of the British codes of advertising and sales promotion and therefore cannot be subject to a transaction of any kind.