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SHARE-BASED COMPENSATION EXPENSE | 6 Months Ended
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Apr. 29, 2023
Share-Based Payment Arrangement [Abstract] |
SHARE-BASED COMPENSATION EXPENSE | SHARE-BASED COMPENSATION EXPENSE The following table summarizes share-based compensation expense for the periods indicated (in thousands):
| Quarter Ended |  | Six Months Ended
| April 29, |  | April 30, |  | April 29, |  | April 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Products | $ | 1,155 |  |  | $ | 1,058 |  |  | $ | 2,206 |  |  | $ | 1,958 |
Services | 2,659 |  |  | 1,943 |  |  | 4,956 |  |  | 3,527 |
Share-based compensation expense included in cost of goods sold | 3,814 |  |  | 3,001 |  |  | 7,162 |  |  | 5,485 |
Research and development | 10,731 |  |  | 8,309 |  |  | 19,965 |  |  | 15,140 |
Selling and marketing | 8,755 |  |  | 8,061 |  |  | 17,179 |  |  | 15,121 |
General and administrative | 8,468 |  |  | 7,334 |  |  | 17,936 |  |  | 15,246 |
Share-based compensation expense included in operating expense | 27,954 |  |  | 23,704 |  |  | 55,080 |  |  | 45,507 |
Share-based compensation expense capitalized in inventory, net | 92 |  |  | (32) |  |  | 130 |  |  | (22) |
Total share-based compensation expense | $ | 31,860 |  |  | $ | 26,673 |  |  | $ | 62,372 |  |  | $ | 50,970 |
As of April 29, 2023, total unrecognized share-based compensation expense was approximately $260.7 million, which relates to unvested stock unit awards and is expected to be recognized over a weighted-average period of 1.52 years. Stock Unit AwardsBeginning in December 2022, Ciena introduced a benefit, under which, upon completion of ten years of service and reaching age 60, executive officers who are residents of the United States, the United Kingdom, or Canada and who provide 12 months’ notice of their retirement will receive continued vesting of all of their granted but unvested restricted stock unit (“RSU”) awards and a pro-rated amount of their performance stock unit awards and market stock unit awards. Other employees in these countries will be subject to the same eligibility and notice requirements, but will receive acceleration of their granted but unvested RSU awards upon retirement. This program accelerates the recognition of share-based compensation expense.

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI https://asc.fasb.org/topic&trid=2228938 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (l) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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