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class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_656599"> In recent years, developments of solid-state lasers pumped by diode laser have attracted much attention because of their wide potential for various applications of compact, long-lived, and ecient sources of coherent radiation. Optical disk systems require green light sources to realize high-density recording. Frequency conversion of laser-diode pumped all solid-state lasers with periodically polednon-linear crystals (such as LiNbO3 [1], LiTaO3 [2], KTiOPO4 [3], KTiOAsO4 [4] andRbTiOAsO4 [5]) into the visible andUV spectral regions is a widely investigatedresearch eld. The quasi-phase-matching frequency-doubler of periodically poled crystals permits access to the highest nonlinear coecient, which is the d33 coecient in the crystals mentionedabove, andavoids any walk-o_ problems because parallel polarizations along the main crystal-axis are used. <br /> <br /> <ignore_js_op> <img src="static/image/filetype/pdf.gif" border="0" class="vm" alt="" /> <span style="white-space: nowrap" id="attach_53762" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})"> <a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=NTM3NjJ8MDVkYmI0NDF8MTczNDg3NDE2MHwwfDEwNTA4Nw%3D%3D" target="_blank">Laser periodically.pdf</a> <em class="xg1">(129.92 KB, 下载次数: 5)</em> </span> <div class="tip tip_4" id="attach_53762_menu" style="position: absolute; display: none" disautofocus="true"> <div class="tip_c xs0"> <div class="y">2010-7-14 17:25 上传</div> 点击文件名下载附件 <br />下载积分: 光电贝 -10 元 </div> <div class="tip_horn"></div> </div> </ignore_js_op> <br /> 北京中科紫玉光电技术有限公司<br /> 地址：北京市海淀区上地东路上地佳园23号楼706室<br /> 电话:010-57131375 010-57131377<br /> 传真：010-62976020<br /> </td></tr></table> <div class="pattl"> <ignore_js_op> <dl class="tattl"> <dt> <img src="static/image/filetype/pdf.gif" border="0" class="vm" alt="" /> </dt> <dd> <p class="attnm"> <a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=NTM3NjF8ZDNjZGM0YzV8MTczNDg3NDE2MHwwfDEwNTA4Nw%3D%3D" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" id="aid53761" target="_blank">Laser periodically.pdf</a> <div class="tip tip_4" id="aid53761_menu" style="display: none" disautofocus="true"> <div class="tip_c"> <p class="y">2010-7-14 17:20 上传</p> <p>点击文件名下载附件</p> 下载积分: 光电贝 -10 元<br /> </div> <div class="tip_horn"></div> </div> </p> <p>129.92 KB, 下载次数: 3, 下载积分: 光电贝 -10 元</p> <p> </p> </dd> </dl> </ignore_js_op> </div> </div> <div id="comment_656599" class="cm"> </div> <div id="post_rate_div_656599"></div> </div> </div> </td></tr> <tr><td class="plc plm"> <div id="p_btn" class="mtw mbm hm cl"> <a 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