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Laser diodes are commonly referred to as edge emitting laser diodes because the laser light is emitted from the edge of the substrate. The light emitting region of the laser diode is commonly called the emitter. The emitter size and the number of emitters determine output power and beam quality of a laser diode.

The output wavelength of a laser depends on the laser material, the process of stimulated emission, the optics of the laser resonator, and additional optical components outside the resonator (e.g., non-linear crystals for 2nd, 3rd, 4th, or 5th harmonic generation).

A solid-state laser consists of a gain medium that is a solid, rather than a liquid as used in dye lasers or the gas that’s in a gas laser. The gain medium of a solid-state laser consists of a glass or crystalline host material

LASER World of PHOTONICS CHINA, Asia’s largest trade fair for the photonics industry, has taken place in Shanghai every year since 2006. It presents the entire range of photonics in an international setting, tailored to the specific needs of the Chinese market.

A laser is a device with specific components and features which allow it to generate an intense, collimated, coherent beam of photons or light through the process of optical amplification.

Besides the already well-known green laser modules from Lasence with the wavelengths 530nm and 545nm(up to 1.8W) new laser modules are now available with wavelengths 520nm, 555nm, 561nm and 571nm. Most are offered with output powers up to 1W, have a fast rise time and are very reliable. The typical output beam has a diameter of 0.5mm with divergence ≤40mrad. With dimensions of just 18mm(20mm) x 55mm (Diameter x Length) they are very compact for this high output power. There are plenty of applications in which these laser modules can be used in:

Lasence G545D1000-18X55-40 green laser module is a DPSS laser module, with output power 1000mW, is made features of wide temperature range, fast rise time and high reliability.

The Mini Green Laser Module G532D001-3.71X10-2.5-X have a very small size (3.71 x 10mm) and the output power is less than 1mW. The wavelength is 532nm with high color purity and fast rise time. The wide operating temperature range (-20 - 50°C) allows the usage in a wide range of applications. The energy consumption is very low which saves supply power. It is also with reverse voltage protection.