Aaron Tachibana
Analyst · Barclays
Thank you, Alan.
As Alan highlighted, net revenue for the quarter was $212.6 million and above the midpoint of our guidance of $205 million to $215 million.
GAAP gross margin was 31.5% for the first quarter and increased 110 basis points quarter-to-quarter. GAAP operating margin was a loss of 1.2% and GAAP loss per share $0.01. Our non-GAAP gross margin was 32.8% and increased 80 basis points relative to the prior quarter due to higher optical communications gross margins, resulting from the cost reduction and favorable mix of new products.
Non-GAAP operating margin for the first quarter was 7.4%. Non-GAAP earnings per share were $0.26 based on a fully diluted share count of 59.7 million, $200,000 in tax expense and immaterial other interest and expense.
Please note that all reported results include allocations from Viavi for the 5-week step period when we were still part of Viavi.
Now that we have 3 months of stand-alone operations under our belt, we have actual run rate SG&A costs. Our stand-alone SG&A costs are significantly lower than those allocated to us by Viavi. For the first quarter, had we been stand-alone for the entirety of the quarter, our operating margin would've been 8.3% and earnings per share would have been $0.29.
Please note that in our press release, our GAAP and non-GAAP results are qualified with the word preliminary. Earlier today, we filed for an extension with the SEC to give us an additional 5 days to file our 10-Q for the first fiscal quarter of 2016. As of today, the allocated costs and our opening balance sheet from the Viavi step period are not yet finalized. We will use the additional 5 days to finalize the step-period results along with Viavi, who also reported similar preliminary results.
The allocated SG&A costs do not have any relationship to the stand-alone cost of Lumentum but do need to be finalized for compliance purposes.
Optical Communications revenue was $177 million, which was a decline of approximately 1% relative to the prior quarter, driven by a $6 million decline in Datacom revenues. Telecom revenues increased $6.8 million sequentially to $132.7 million, inclusive of WaveReady revenues, which declined by $400,000 sequentially.
Optical Communications gross margin was up 110 basis points to 31.5% as we saw the benefit of cost reduction activities and more favorable mix of new products.
Note, the prior quarter's gross margin to which we are comparing includes the impact of WaveReady, which adds approximately 40 basis points to the CCOP segment gross margins Viavi reported for the fourth quarter of 2015.
Our Optical Communications gross margin at 31.5% was the highest it's been in over 2 years.
Commercial Lasers revenue was $35.6 million, an increase of approximately 19% quarter-on-quarter, driven by sequential fiber laser growth. Gross margin at 39.9% declined 150 basis points, primarily due to the impact of timing of annual price reduction, compared with planned cost reduction.
Reported operating expenses totaled $54.1 million, with R&D expense of $32 million and SG&A expense at $22.1 million. The SG&A expense included allocated costs from Viavi based on our expense structure as a stand-alone company was $2 million higher than it would have been on a stand-alone basis.
Our income tax expense was $0.2 million for GAAP -- a non-GAAP tax rate of 1.4%. At the time of separation from Viavi, we were able to establish an entity structure for Lumentum that would allow for single-digit tax rate for the first couple of years as a stand-alone public company and then remain below 12% to 13% longer term. We were able to utilize approximately $1.1 billion of Viavi's net operating losses to provide Lumentum with an optimized structure going forward.
During the quarter, we had 2 customers that each contributed 10% or more of our revenue. Our cash balance was $142 million at the end of Q1 and increased approximately $4.5 million from the initial capitalization of about $137.6 million.
While we are not providing long term guidance, we believe the path to double-digit operating margins is in sight. First, we believe we have a high level of leverage over our operating expenses and SG&A expenses, in particular. The nature of our business is such that revenue growth was driven primarily by increases in sales to the customers, with which we are currently engaged, versus adding a significant number of new customers.
Second, we believe we have growth opportunities in both Optical Communications and our Lasers business that each alone could drive incremental margins sufficient for 10% or higher operating margins at the consolidated Lumentum level.
I will turn the call over to Alan for guidance for the second quarter of fiscal 2016 and closing remarks.