UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report: March 7, 2013

(Date of earliest event reported)

JDS Uniphase Corporation

(Exact name of registrant as specified in its charter)

(408) 546-5000

(Registrant’s telephone number, including area code)

Not Applicable

(Former Name or Former Address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o            Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o            Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o            Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o            Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.01       Completion of Acquisition or Disposition of Assets.

On March 7, 2013, JDS Uniphase Corporation (“JDSU”) completed its acquisition of Arieso Limited, a privately-held company based in the United Kingdom (“Arieso”).  JDSU acquired all outstanding shares of Arieso for $85 million in cash, subject to customary hold back and working capital provisions.

A copy of JDSU’s press release announcing the closing of the acquisition is attached hereto as Exhibit 99.1 and incorporated by reference herein.

Item 9.01       Financial Statements and Exhibits.

(a)  Financial Statements of Businesses Acquired

The financial statements required by Item 9.01(a) of Form 8-K will be filed by amendment to this Current Report on Form 8-K not later than seventy-one (71) calendar days after the date hereof.

(b)   Pro Forma Financial Information

The pro forma financial information required by Item 9.01(b) of Form 8-K will be filed by amendment to this Current Report on Form 8-K not later than seventy-one (71) calendar days after the date hereof.

(d)  Exhibits

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

3

Exhibit Index

4