GB/T 45968-2025量子信息用光学级近化学计量比铌酸锂晶体

ICS31.030

CCSQ65

中华人民共和国国家标准

GB/T45968—2025

量子信息用光学级近化学计量比

铌酸锂晶体

Opticalnearstoichiometriclithiumniobatecrystalusedinquantuminformation

2025⁃08⁃01发布2026⁃02⁃01实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T45968—2025

目次

前言…………………………Ⅲ

1范围………………………1

2规范性引用文件…………………………1

3术语和定义………………1

4要求………………………4

4.1外观·················································································································4

4.2锂含量··············································································································5

4.3晶向偏差···········································································································5

4.4总厚度变化········································································································5

4.5线性厚度变化·····································································································5

4.6弯曲度··············································································································5

4.7翘曲度··············································································································5

4.8粗糙度··············································································································6

4.9光学均匀性········································································································6

4.10消光比·············································································································6

4.11单畴化程度·······································································································6

4.12矫顽电场场强····································································································6

4.13激光损伤阈值····································································································6

4.14光透过率··········································································································6

4.15一次电光系数····································································································6

5检测方法…………………6

5.1检测环境···········································································································6

5.2表面质量···········································································································6

5.3直径·················································································································6

5.4厚度·················································································································7

5.5定向面长度和第二定向面长度················································································7

5.6锂含量··············································································································7

5.7晶向偏差···········································································································7

5.8总厚度变化········································································································7

5.9局部厚度变化·····································································································7

5.10弯曲度·············································································································7

5.11翘曲度·············································································································7

5.12粗糙度·············································································································7

Ⅰ

GB/T45968—2025

5.13光学均匀性·······································································································7

5.14消光比·············································································································7

5.15单畴化程度·······································································································7

5.16矫顽电场场强····································································································8

5.17激光损伤阈值····································································································8

5.18光透过率··········································································································8

5.19一次电光系数····································································································8

6检查与验收规则…………………………9

6.1检查与验收········································································································9

6.2组批·················································································································9

6.3检验分类···········································································································9

6.4检验项目···········································································································9

6.5逐批检验··········································································································10

6.6周期检验··········································································································11

7包装、标签、储存和运输…………………11

7.1包装················································································································11

7.2标签················································································································12

7.3储存················································································································12

7.4运输················································································································12

附录A（规范性）锂含量的测试方法···············································································13

A.1原理···············································································································13

A.2样品制备·········································································································13

A.3测试方法和计算步骤··························································································13

附录B（规范性）一次电光系数的测定方法······································································14

B.1原理···············································································································14

B.2试样制备·········································································································14

B.3测试步骤·········································································································15

参考文献……………………16

Ⅱ

GB/T45968—2025

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中国建筑材料联合会提出。

本文件由全国人工晶体标准化技术委员会（SAC/TC461）归口。

本文件起草单位：济南量子技术研究院、山东大学、中国科学院新疆理化技术研究所、南京大学、

中电科技德清华莹电子有限公司、济南晶正电子科技有限公司、苏州南智芯材科技有限公司、暨南大

学、北京浦丹光电股份有限公司、安徽科瑞思创晶体材料有限责任公司、天津津航技术物理研究所、

北京世维通科技股份有限公司、天通控股股份有限公司、上海东城电子材料有限公司、中国科学院空天

信息创新研究院。

本文件主要起草人：王东周、桑元华、孙军、宋伟、刘宏、赵刚、胡文、王孚雷、于法鹏、李胜雨、

郑名扬、卢惠辉、向美华、罗毅、孙文宝、付振东、郑远生、徐秋峰、方志强、朱卫俊、郭广妍、李春忠。

Ⅲ

GB/T45968—2025

量子信息用光学级近化学计量比

铌酸锂晶体

1范围

本文件规定了量子信息用光学级近化学计量比铌酸锂晶体的技术要求、检测方法、检查与验收规

则，以及包装、标签、储存和运输等。

本文件适用于厚度分别为0.5mm和1mm，直径为3英寸（in）、4in和6in，x切和z切的量子信息

用光