Raytac Announced Pulse Direct Laser Solution With Extented Battery Life Time

Direct green laser implements now have been the hype for the laser's consumer or industrial applications.

Surely, products employs direct green laser can enjoy a -20 °C ~ +60 °C which has much wider operation temperature compared with DPSS green laser (+15 °C~35 °C)
Not just like this, but one more biggest advantage of direct green laser is low power consumption.

532nm DPSS 綠光雷射結構

半導體泵浦固體雷射 (Diode-pumped Solid-State Laser)，縮寫為DPSS。

在這十年以來，532nm DPSS在綠光雷射應用上扮演最重要的部分。
無論如何，532nm DPSS的綠光雷射穩定性與操作溫度上的應用一直都有頭痛的問題存在。

以下為三種532nm DPSS綠光雷射的結構介紹。
快速且簡單了解為什麼532nm對環境溫度存有敏感的原因。

532nm綠光雷射是由808nm雷射二極體 (200mW)驅動。
808nm雷射將透過二個晶體(KTP和YVO4)讓波長從808nm轉換到1064nm，再倍頻到532nm。
由於二個晶體在溫度變化時較為敏感，532nm綠光雷射的穩定性與操作溫度得視此二個晶體的品質。也因此造成綠光雷射應用上依賴溫度的關係很高。

※KTP：磷酸鈦氧鉀晶體，為非線性光學晶體綜合性能最好之一。※KTP：用於雷射器1064nm的內、外腔倍頻，可獲得高功率的綠色雷射光源。
※YVO4：摻釹釩酸釔晶體，適於製造雷射二極體及中低功率的雷射器。

一般來說，532nm綠色雷射工作溫度大約在15°C～35°C左右，遠低於戶外使用溫度規範要求。
在這種緊密的溫度差下也導致532nm綠色雷射應受到限制。

勁達國際電子有限公司 Raytac Corporation
為半導體綠光雷射製造商使用Osram方案。
www.raytac.com
Tel: +886.2.3234.0208
email: service@raytac.com
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532nm DPSS Green Laser Structure

Different from 510nm Direct Green laser, 532nm DPSS green laser has been playing the most important part for green laser application for a decade.

However, the stability and operation for 532nm always be the headache for implements.

Japanese Laser Safety Regulation

Laser safety is critical to protect consumers from injury and harm when using.

Thus, countries have set up different standards such FDA for USA; CE for EU; PSC for Japan.

Within these regulation, Japanese PSC is the most discreet.
(PSC stands for Product Safety of Consumer Products)

Not only product itself need to comply with the regulation, but also manufacturer and a Japanese domestic importer need to be managed by country.

According to the Japanese testing Lab "JQA"

"Portable laser devices which emit laser light (limited to visible light) or which are designed to display letters or images are "special specified products". Products like laser pointers and laser thermometers are included in this scope."