yanglianghui 发表于 2009-11-25 10:26 http://www.shoudian.org/images/common/back.gif
很显然，如果是后者的话LZ早就出名或被国家秘密关押了 没玩过也想知道 怎么就没有高人告诉我呢，大功率1W或3W白光的用330mA电流的话电压可以到3.5V左右，算起来也就1W的功率，而用330mA电流推激光，电压还达不到2V，功率算起来只有600mW，200mW的激光管能上到多大功率呢？玩过的朋友请告 ...
路旁人 发表于 2009-11-25 23:54 http://www.shoudian.org/images/common/back.gif
看了半天没明白LZ这个描述的意思。。并且本人物理一惯不好，就不妄加解释了。。
1、LZ说的1W或3W的白光，是说的LED吧？
2、用330mA电流推激光，电压还达不到2V，功率算起来只有600mW，这个是我没搞明白的地方，一头雾水。。
3、200mW的激光管能上到多大功率呢？很明显，200mW 晕，红光的压降是2.5V左右，200mw激光管的最大电流大概是250ma左右，330ma没有烧真是幸运了，不要把这些小功率的激光管往死里用{:1_239:}
200mw的激光管如果用透镜聚焦了，焦点在2-5cm左右，烧cd壳的黑塑料、烧火柴应该可以了，如果想玩刺激的，不如直接上40Wco2激光器好了～～ 本帖最后由 电阻 于 2009-11-27 13:32 编辑
一般200毫瓦的管子，电流在200-240毫安，要是上330毫安，恐怕管子已经完蛋了！ DESCRIPTION
ML1XX27-40 is a high-power, high-efficient AlGaInP
semiconductor laser which provides a stable, single
transverse mode oscillation with emission wavelength of
658nm and standard pulse light output of 330mW.
ML1XX27-40 has a real-index-waveguide which improves the
slope efficiency (reduction of the operating current) and the
astigmatic distance.
Also, ML1XX27-40 has a window-mirror-facet which improves
the maximum output power. That leads to highly reliable and
high-power operation at 75 C.
FEATURES
•High Output Power: 330mW (Pulse)
• High Efficiency: 0.95W/A (typ.)
• Visible Light: 658nm (typ.)
• Low Aspect Ratio (/ ): 1.8 (typ.)
• Low Astigmatic Distance: 1m (typ.)
APPLICATION
Portable High-Density Optical Disc Drives
Re-Writable DVD Drives
ABSOLUTE MAXIMUM RATINGS (Note 1)
Symbol Parameter Conditions Ratings Unit
Po Light output power CW 200 mW
Pulse(Note 2) 330
VRL Reverse voltage - 2 V
Tc Case temperature - -10 ~ +60 C
Tstg Storage temperature - -40 ~ +100 C
Note1: The maximum rating means the limitation over which the laser should not be operated even instant time.
This does not mean the guarantee of its lifetime. As for the reliability, please refer to the reliability report issued by
Quality Assurance Section, HF & Optical Semiconductor Division, Mitsubishi Electric Corporation.
Note2: TARGET SPEC /Condition Duty Cycle: less than 35%, pulse width: less than 30ns
ELECTRICAL/OPTICAL CHARACTERISTICS (Tc=25°C)
Symbol Parameter Test conditions Min. Typ. Max Unit
Ith Threshold current CW - 100 - mA
Lop Operating current CW,Po=200mW - 330 - mA
Vop Operating voltage CW,Po=200mW - 2.4 3.0 V
Slope efficiency CW, Po=200mW - 0.85 - mW/mA
p Peak wavelength CW, Po=200mW 654 658 662 nm
Beam divergence angle (parallel) CW, Po=200mW 7 9.5 12 。
Beam divergence angle (perpendicular) CW, Po=200mW 14 17 20 。 楼主的这个电流太大了，目前的红激光，对于连续电流，最好不要大于200mA。 LD电流太大的话就直接变LED了。。。我超电流烧掉不下5个LD了
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