Revenue Snapshot Quarterly Annual (1) Q2’FY14 Q2’FY15 (2) (2) $16 $19 $19 $24 $21 $34 $89 $96 $88 $88 $82 $85 $97M $103M $95M $96M $89M $87M Q1'FY14 Q2'FY14 Q3'FY14 Q4'FY14 Q1'FY15 Q2'FY15 100G Cont. Ops., Ex. I&C (Total) Reported $45 $79 $361 $416M $391M FY 2013 FY 2014 100G Cont. Ops., Ex. I&C (Total) Reported 100G 19% 40G 26% 10G 48% I&C 7% 100G 39% 40G 22% 10G 37% I&C 2% Product Revenue Mix $389 Exhibit 99.1 Note: Fiscal year 2013 ends June 29, 2013 and fiscal year 2014 ends June 28, 2014. (1) FY 2013 pro forma for the full year effect of the acquisition of Opnext which closed July 23, 2012. (2) Inclusive of 100G revenues.

Non-GAAP Gross Margin Expansion Drivers Expansion as 100G Mix Increases Improved Fab Utilization Long-Term Target ~30-35% Improved Operations 100G Coherent CFP2 Quarterly Non-GAAP Gross Margin Q3'FY14 Q4'FY14 Q1'FY15 Q2'FY15 9.1% 10.9% 13.5% 16.2% 12.3% 14.1% 16.5% 16.5% Cont. Ops., Ex. I&C Reported Note: Fiscal year 2013 ends June 29, 2013 and fiscal year 2014 ends June 28, 2014. See attached reconciliation for definition of Non-GAAP Gross Margin.

Path to Profitability Operating Expenses (Non-GAAP) Reduced Spending Adjusted EBITDA (Non-GAAP) Narrowed Operating Loss Q1'FY14 Q2'FY14 Q3'FY14 Q4'FY14 Q1'FY15 Q2'FY15 $36.0 $32.3 $27.2 $25.6 $26.2 $23.3 $38.1M $34.2M $29.2M $27.9M $28.4M $24.2M Cont. Ops., Ex. I&C Reported Q1'FY14 Q2'FY14 Q3'FY14 Q4'FY14 Q1'FY15 Q2'FY15 ($19.1) ($10.7) ($12.3) ($9.4) ($8.9) ($5.5) ($21.1M) ($12.5M) ($14.4M) ($11.3M) ($10.8M) ($5.3M) Reported Cont. Ops., Ex. I&C Note: Fiscal year 2013 ends June 29, 2013 and fiscal year 2014 ends June 28, 2014. See attached reconciliation for definition of Operating Expenses (Non-GAAP) and Adjusted EBITDA (Non-GAAP).

OCLARO, INC.

RECONCILIATION OF GAAP TO NON-GAAP FINANCIAL MEASURES

OCLARO, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

Non-GAAP Financial Measures

Oclaro believes that providing the following non-GAAP measures to its investors, in addition to corresponding income statement measures, provides investors the benefit of viewing Oclaro’s performance using the same financial metrics that the management team uses in making many key decisions and evaluating how Oclaro’s “core operating performance” and its results of operations may look in the future. Oclaro defines “core operating performance” as its ongoing performance in the ordinary course of its operations. Items that are non-recurring or do not involve cash expenditures, such as impairment charges, income taxes, restructuring and severance programs, costs relating to specific major projects (such as acquisitions), non-cash compensation related to stock and options and certain income, purchase accounting adjustments related to the fair market value of acquired inventories, costs to outsource our back-end manufacturing activities, write-offs and expenses related to flooding in Thailand, including advance payments received from insurers, impairment of fixed assets and inventory and related expenses, are not included in Oclaro’s view of “core operating performance.” Management does not believe these items are reflective of Oclaro’s ongoing core operations and accordingly excludes those items from Adjusted EBITDA, non-GAAP gross margin and non-GAAP operating expenses.

Oclaro uses Adjusted EBITDA, non-GAAP gross margin, non-GAAP operating expenses and non-GAAP operating income/loss in evaluating Oclaro’s historical and prospective cash usage, as well as its cash usage relative to its competitors. Specifically, management uses these non-GAAP measure to further understand and analyze the cash used in/generated from Oclaro’s core operations. Oclaro believes that by excluding these non-cash and non-recurring charges, more accurate expectations of its future cash needs can be assessed in addition to providing a better understanding of the actual cash used in or generated from core operations for the periods presented. Oclaro further believes that providing this information allows Oclaro’s investors greater transparency and a better understanding of Oclaro’s core cash position.

Non-GAAP financial measures are not in accordance with, or an alternative for, generally accepted accounting principles in the United States of America. Non-GAAP measures should not be considered in isolation from or as a substitute for financial information presented in accordance with generally accepted accounting principles, and may be different from non-GAAP measures used by other companies.

Sale of Industrial and Consumer Business

On August 5, 2014, Oclaro entered into a separation agreement to sell the industrial and consumer business of Oclaro Japan located at its Komoro, Japan facility (the “Industrial and Consumer Business”) to Ushio Opto Semiconductors, Inc. On October 27, 2014, the sale was completed. In addition to the measures described below, Oclaro has presented each such measure, as well as revenue, for prior periods both including and excluding the results attributable to the Industrial and Consumer Business. Amounts excluding the Industrial and Consumer Business are labeled “Ex. I&C.”

Adjusted EBITDA

Adjusted EBITDA is calculated as operating income/loss excluding the impact of depreciation and amortization, restructuring, acquisition and related costs, non-cash compensation related to stock and options, impairment of intangible assets and goodwill and certain other one-time charges and credits, including flood related advance payments received from insurers, impairment of fixed assets and inventory and related expenses and outsource transition costs, all as specifically identified in the non-GAAP reconciliation schedules set forth below. In addition to Adjusted EBITDA, Oclaro has also presented Adjusted EBITDA that has been further adjusted to reflect the exclusion of the Industrial and Consumer Business. This metric is referred to as “Adjusted EBITDA, Ex. I&C.”

Non-GAAP Gross Profit and Gross Margin

Non-GAAP Gross Profit is calculated as gross profit excluding the impact of outsource transition costs and non-cash stock-based compensation expense associated with cost of revenues, all as specifically identified in the non-GAAP reconciliation schedules set forth above. In addition to non-GAAP gross profit, Oclaro has also presented non-GAAP gross profit that has been further adjusted to reflect the exclusion of the gross profit associated with the Industrial and Consumer Business. This metric is referred to as “Non-GAAP Gross Profit, Ex. I&C.” Non-GAAP gross margin is calculated by dividing non-GAAP gross profit by GAAP revenue. Non-GAAP gross margin, Ex. I&C is calculated by dividing non-GAAP gross profit, Ex. I&C by revenue Ex. I&C.

Non-GAAP Operating Expenses

Non-GAAP Operating Expenses is calculated as operating expenses excluding the impact of amortization, restructuring, acquisition and related costs, non-cash compensation related to stock and options, outsource transition costs, flood related income or expense, impairment of intangible assets and goodwill, and gains or losses on the sale of property, plant and equipment.