What was the revenue for the NSE business segment in the March quarter 
s until more staff is able to return to work. That said, we expect SE revenues and bookings to start rebounding in fiscal Q4. We expect the SE demand to continue to improve throughout the calendar 2021, returning to and exceeding pre-COVID levels. Additionally, we expect 5G field instruments demand to start materializing in the second half of calendar 2021, as 5G service providers start ramping up their network build outs.
Longer term, we expect several major industry and political trends to set up NSE for a multiyear super cycle. The carriers recently made sizable investments in spectrum and are now aggressively working on 5G wireless field deployment plans. The 5G market presents Viavi with new wireless and fiber growth opportunities. Our wireless products are already off to a strong start with solid bookings and business visibility. We are also seeing attractive growth opportunities in Europe as governments there push to help fund deployment of fiber to the home to replace their legacy copper networks. And lastly, the U.S. plans for multiyear investment in broadband outside major cities is expected to present Viavi with new markets and opportunities for fiber cable and wireless.
Now turning on to OSP. The OSP business segment delivered record revenue and profitability for March quarter led by strong demand for both anti-counterfeiting and 3D sensing products. Anti-counterfeiting demand is being driven by a combination of global central bank, fiscal stimulus, inventory replenishment, and banknote redesigns.
Fiscal Q3 saw above seasonal demand by major customers, and we expect stronger than normalized demand for anti-counterfeiting products to persist in the foreseeable future. 3D sensing demand for mobile devices remain strong and is up double digit percentage from a year ago levels, reflecting the increased adoption and penetration. We expect 3D sensing revenue in fiscal year 2021 to be up 16% year-on-year. This is a slight decrease from our prior quarter expectations of being up 20% year-on-year, driven by industry semiconductor supply chain constraints.
To summarize, calendar 2021 is off to a strong start with both NSE business segment experiencing rapid recovery and expecting year-on-year revenue growth throughout the rest of the calendar year. The OSP business segment is expecting to see continued robust demand for the anti-counterfeiting products driven by global fiscal stimulus programs and currency redesigns. And 3D sensing is expected to continue to see further adoption and penetration opportunities. Overall, we expect our principal growth drivers; 5G, fiber and 3D sensing to continue driving growth for Viavi in calendar 2021.
In conclusion, I would like to express my appreciation to the Viavi team for its continued strong execution in delivering another record quarter and wish all our employees and supply chain partners, customers and our shareholders to remain safe and healthy as we return to business normalcy.
I will now turn the call over to Bill.
Bill Ong -- Investor Relations
Thank you, Oleg. This quarter, we will be participating at the Needham TMT Investor Conference on May 20, in the Stifel Cross Sector Investor Conference on June 8. Christina, let's begin the question-and-answer session. [Operator Instructions]
Questions and Answers:
Operator
[Operator Instructions]. And your first question comes from the line of Samik Chatterjee with JPMorgan.
Joe Cardoso -- JPMorgan -- Analyst
Hi. This is Joe Cardoso on for Samik Chatterjee. My first question is actually around supply constraints that you mentioned for the 3D sensing business? And actually, I'm kind of surprised to hear just given the commentary that we've heard through earnings season thus far that you're not necessarily feeling any of those implications on the NSE business. I'm just curious, is that correct? And then what are you guys seeing in the NSE business in terms of supply constraints and whether you're factoring any into your forward guidance? And then I have a follow up. Thank you.
Oleg Khaykin -- President and Chief Executive Officer
Su
s until more staff is able to return to work. That said, we expect SE revenues and bookings to start rebounding in fiscal Q4. We expect the SE demand to continue to improve throughout the calendar 2021, returning to and exceeding pre-COVID levels. Additionally, we expect 5G field instruments demand to start materializing in the second half of calendar 2021, as 5G service providers start ramping up their network build outs.
Longer term, we expect several major industry and political trends to set up NSE for a multiyear super cycle. The carriers recently made sizable investments in spectrum and are now aggressively working on 5G wireless field deployment plans. The 5G market presents Viavi with new wireless and fiber growth opportunities. Our wireless products are already off to a strong start with solid bookings and business visibility. We are also seeing attractive growth opportunities in Europe as governments there push to help fund deployment of fiber to the home to replace their legacy copper networks. And lastly, the U.S. plans for multiyear investment in broadband outside major cities is expected to present Viavi with new markets and opportunities for fiber cable and wireless.
Now turning on to OSP. The OSP business segment delivered record revenue and profitability for March quarter led by strong demand for both anti-counterfeiting and 3D sensing products. Anti-counterfeiting demand is being driven by a combination of global central bank, fiscal stimulus, inventory replenishment, and banknote redesigns.
Fiscal Q3 saw above seasonal demand by major customers, and we expect stronger than normalized demand for anti-counterfeiting products to persist in the foreseeable future. 3D sensing demand for mobile devices remain strong and is up double digit percentage from a year ago levels, reflecting the increased adoption and penetration. We expect 3D sensing revenue in fiscal year 2021 to be up 16% year-on-year. This is a slight decrease from our prior quarter expectations of being up 20% year-on-year, driven by industry semiconductor supply chain constraints.
 To summarize, calendar 2021 is off to a strong start with both NSE business segment experiencing rapid recovery and expecting year-on-year revenue growth throughout the rest of the calendar year. The OSP business segment is expecting to see continued robust demand for the anti-counterfeiting products driven by global fiscal stimulus programs and currency redesigns. And 3D sensing is expected to continue to see further adoption and penetration opportunities. Overall, we expect our principal growth drivers; 5G, fiber and 3D sensing to continue driving growth for Viavi in calendar 2021.
In conclusion, I would like to express my appreciation to the Viavi team for its continued strong execution in delivering another record quarter and wish all our employees and supply chain partners, customers and our shareholders to remain safe and healthy as we return to business normalcy.
I will now turn the call over to Bill.
Bill Ong -- Investor Relations
Thank you, Oleg. This quarter, we will be participating at the Needham TMT Investor Conference on May 20, in the Stifel Cross Sector Investor Conference on June 8. Christina, let's begin the question-and-answer session. [Operator Instructions]
Questions and Answers:
Operator
[Operator Instructions]. And your first question comes from the line of Samik Chatterjee with JPMorgan.
Joe Cardoso -- JPMorgan -- Analyst
Hi. This is Joe Cardoso on for Samik Chatterjee. My first question is actually around supply constraints that you mentioned for the 3D sensing business? And actually, I'm kind of surprised to hear just given the commentary that we've heard through earnings season thus far that you're not necessarily feeling any of those implications on the NSE business. I'm just curious, is that correct? And then what are you guys seeing in the NSE business in terms of supply constraints and whether you're factoring any into your forward guidance? And then I have a follow up. Thank you.
Oleg Khaykin -- President and Chief Executive Officer
Su