Basis of Preparation (Policies)	3 Months Ended
Basis of Preparation (Policies)	Sep. 28, 2013
Basis of Presentation	*Basis of Presentation* Oclaro, Inc., a Delaware corporation, is sometimes referred to in this Quarterly Report on Form 10-Q as “Oclaro,” “we,” “us” or “our.” On November 1, 2013, we sold our optical amplifier and micro-optics business (the “Amplifier Business”) to II-VI Incorporated (II-VI). The sale is more fully discussed in Note 5, Business Combinations and Dispositions and Note 16, Subsequent Events. On September 12, 2013, we sold our Oclaro Switzerland GmbH subsidiary and associated laser diodes and pump business (the “Zurich Business”) to II-VI. The sale is more fully discussed in Note 5, Business Combinations and Dispositions. These sales are reported as discontinued operations, which require retrospective restatement of prior periods to classify the assets, liabilities and results of operations as discontinued operations. We have classified the assets and liabilities to be sold as “assets of discontinued operations held for sale” and “liabilities of discontinued operations held for sale” within current assets and current liabilities, respectively, on the condensed consolidated balance sheet. The notes to our condensed consolidated financial statements relate to our continuing operations only, unless otherwise indicated. For presentation purposes, certain prior period amounts have been reclassified to conform to the current period financial statement presentation. These reclassifications do not affect our consolidated net loss, cash flows, cash and cash equivalents or stockholders’ equity, as previously reported. On July 23, 2012, we completed a merger by and among Opnext, Inc. (Opnext). The acquisition is more fully discussed in Note 5, Business Combinations and Dispositions. The condensed consolidated balance sheets as of September 28, 2013 and June 29, 2013, include the assets and liabilities assumed in the Opnext acquisition. The condensed consolidated statements of operations, comprehensive loss and cash flows for the three months ended September 29, 2012 include the results of operations of the combined entities from July 23, 2012, the date of the acquisition. The accompanying unaudited condensed consolidated financial statements of Oclaro as of September 28, 2013 and for the three months ended September 28, 2013 and September 29, 2012 have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and with the instructions to Article 10 of Securities and Exchange Commission (SEC) Regulation S-X, and include the accounts of Oclaro and all of our subsidiaries. Accordingly, they do not include all of the information and footnotes required by such accounting principles for annual financial statements. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation of our consolidated financial position and results of operations have been included. The condensed consolidated results of operations for the three months ended September 28, 2013 are not necessarily indicative of results that may be expected for any other interim period or for the full fiscal year ending June 28, 2014. The condensed consolidated balance sheet as of June 29, 2013 has been derived from our audited financial statements as of such date, but does not include all disclosures required by U.S. GAAP. These unaudited condensed consolidated financial statements should be read in conjunction with our audited financial statements included in our Annual Report on Form 10-K for the year ended June 29, 2013 (2013 Form 10-K).
Use of Estimates	*Use of Estimates* The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reported periods. These judgments can be subjective and complex, and consequently, actual results could differ materially from those estimates and assumptions. Descriptions of some of the key estimates and assumptions are included in our 2013 Form 10-K.
Fiscal Years	*Fiscal Years* We operate on a 52/53 week year ending on the Saturday closest to June 30. Our fiscal year ending June 28, 2014 will be a 52 week year, with the quarter ended September 28, 2013 being a 13 week quarterly period. Our fiscal year ended June 29, 2013 was a 52 week year, with the quarter ended September 29, 2012 being a 13 week quarterly period.

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

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