Vertical Cavity Surface Emitting Lasers

We offer Vertical Cavity Surface Emitting Lasers (VCSELs) from IMM Photonics (Germany) and Edison Opto (Taiwan).

 

VCSELs are semiconductor laser diodes that emit light perpendicular to the chip surface, i.e. from a vertical cavity, unlike traditional edge-emitting lasers that emit light from the side of the wafer.

 

This vertical emission is enabled by a short optical cavity formed between two highly reflective Distributed Bragg Reflector (DBR) mirrors, with an active region containing quantum wells where electron-hole recombination generates photons. The mirrors reflect light back and forth, allowing efficient lasing in a compact structure. Apertures defined in the VCSEL structure confine current and optical modes, improving efficiency and beam quality.

 

VCSEL technology has become a cornerstone in modern photonics due to its efficiency, scalability, and versatility, making it essential for high-speed communication, sensing, and compact optical systems.

Key Features and Advantages

Compact and scalable: VCSELs can be fabricated in large arrays directly on a wafer, allowing simultaneous testing and high manufacturing yield.
Low power consumption: They require minimal threshold current and operate efficiently in the milliwatt range.
High modulation speed: Suitable for high-speed optical communication and data transmission.
Stable beam quality: Produces a circular, low-divergence beam that couples easily into optical fibres.
Easy integration: Their vertical emission allows simpler packaging and integration into devices compared to edge-emitting lasers.

Applications

VCSELs are widely used in optical communication systems, 3D sensing such as Face ID in smart phones and door cameras, LiDAR for automotive safety, computer mice, laser printers, and consumer electronics. They are also employed in data centres for high-speed fibre-optic connections and in medical imaging due to their compact size and precise light emission.

 

IMM Photonics

Singlemode polarisation locked VCSELs with power levels of 1.0mW and 1.5mW and the option of an integrated monitor photodiode to facilitate automatic power control. There is also a 760nm 0.5mW device which is optimised for advanced O₂ detection.

 

	Part Number	Peak Wavelength	Package	Optical Power	Beam Divergence
	IMV-850-1-PL-TO46	850±10nm	2-lead, TO-46, flat window	1.0 mW	17°
	IMV-850-1-PL-TO46-PD	850±10nm	Internal Monitor Photodiode 4-lead, TO-46, angle cap/window	1.0 mW	17°
	IMV-850-2-PL-TO46	850±10nm	2-lead, TO-46, flat window	1.5 mW	13°
	IMV-850-2-PL-TO46-PD	850±10nm	Internal Monitor Photodiode 4-lead, TO-46, angle cap/window	1.5 mW	13°
	EP760-VC-TP46	760nm (Typ.)	2+1 lead, TO-46, flat window	0.5 mW	11°
	Application Note: IMM Photonics 850nm VCSELs for precision sensing and system integration

 

Edison Opto

High power VCSELs devices widely used as pulsed sources for direct time-of-flight and LiDAR applications as well as flood- and structured-illumination sources for camera-based imaging and recognition systems.

 

For Time-of-Flight (ToF) applications the EDVCSEL 3235 series are available with wavelengths of 850nm and 940nm using a 2 Watt VCSEL chip alongside a version utilising an 8W-rated 940nm chip which is derated in order to provide high-efficiency (2.7 W output at just 1.5A peak) and ultra-high-reliability.

 

	Part Number	Peak Wavelength	Package	Optical Power	Beam Divergence
EDCVSEL 3535 SL (Structured Light) 2D Dot Array Emitters
	RVBH06R2S7937004	940nm	SMD, 3.5 x 3.5 x 3.98(h) mm3 Flat Window, Diffractive Optical Element	930 mW (1.5A / 500µs)	93° x 70°
	RVBH06R2S7806004	940nm	SMD, 3.5 x 3.5 x 3.98(h) mm3 Flat Window, Diffractive Optical Element	930 mW (1.5A / 500µs)	80° x 60°
	RVBH06R1S7626404	940nm	SMD, 3.5 x 3.5 x 3.98(h) mm3 Flat Window, Diffractive Optical Element	630 mW (1.0A / 500µs)	62° x 64°
EDCVSEL 3535 MT (Moulded Transfer) Narrow Beam
	RVFC0612S3181806	810nm	SMD, 3.45 x 3.45 x 2.31(h) mm3	2.4 W (pk) (2.7A / 500µs)	18° x 18°
EDCVSEL 3235 (ToF)
	RVIC2012S4604506	850nm	SMD, 3.2 x 3.5 x 1.45(h) mm3 Flat Window (MLA, Glass) Photodiode Detection Mechanism 2W VCSEL chip	2.1 W (pk) (2.7A / 500µs)	60° x 45°
	RVIC2012S4725806				72° x 58°
	RVIC2012S4786506				78° x 65°
	RVIC2012S4876706				87° x 67°
	RVIC2012S4B09006				110° x 90°
	RVIC20L4S7604504	940nm	SMD, 3.2 x 3.5 x 1.45(h) mm3 Flat Window (MLA, Glass) Photodiode Detection Mechanism 2W VCSEL chip	2.0 W (pk) (2.7A / 500µs)	60° x 45°
	RVIC20L4S7725804				72° x 58°
	RVIC20L4S7786504				78° x 65°
	RVIC20L4S7876704				87° x 67°
	RVIC20L4S7B09004				110° x 90°
	RVIC20L7T7604504	940nm	SMD, 3.2 x 3.5 x 1.45(h) mm3 Flat Window (MLA, Glass) Photodiode Detection Mechanism Hi-Reliability 8W chip (derated)	2.7 W (pk) (1.5A / 500µs)	60° x 45°
	RVIC20L7T7876704				87° x 67°
	RVIC20L7T7B09004				110° x 90°

 

To discuss your application and arrange for sample devices please Contact Us.