Good afternoon. I will be your conference operator. At this time, I would like to welcome everyone to Applied Optoelectronics Third Quarter 2021 Earnings Conference Call. All lines have been placed on mute to prevent any background noise. After the speakers' remarks, there will be a question-and-answer session. Please note, this call is being recorded. And now I would like to turn the call over to Lindsay Savarese, Investor Relations for AOI. Ms. Savarese, you may begin.

Thank you. I'm Lindsay Savarese, Investor Relations for Applied Optoelectronics, and I'm pleased to welcome you to AOI's third quarter 2021 financial results conference call. After the market closed today, AOI issued a press release announcing its third quarter 2021 financial results and provided its outlook for the fourth quarter of 2021. The release is also available on the company's website at ao-inc.com. This call is being recorded and webcast live. A link to the recording can be found on the Investor Relations section of the AOI website and will be archived for one year. Joining us on today's call is Dr. Thompson Lin, AOI's Founder, Chairman, and CEO; and Dr. Stefan Murry, AOI's Chief Financial Officer and Chief Strategy Officer. Thompson will give an overview of AOI's Q3 results and Stefan will provide financial details and the outlook for the fourth quarter of 2021. A question-and-answer session will follow our prepared remarks. Before we begin, I would like to remind you to review AOI's Safe Harbor statements. On today's call, management will make forward-looking statements. These forward-looking statements involve risks and uncertainties, as well as assumptions and current expectations which could cause the company's actual results to differ materially from those anticipated in such forward-looking statements. In some cases, you can identify forward-looking statements by terminology, such as believes, anticipates, estimates, intends, predicts, expects, plans, may, should, could, would, will or thinks and by other similar expressions that convey uncertainty of future events or outcomes. Forward-looking statements also include statements regarding management's beliefs and expectations related to the expansion of the reach of our products into new markets and customer responses to our innovations, as well as statements regarding the company's outlook for the fourth quarter of 2021. Except as required by law, we assume no obligation to update forward-looking statements for any reason after the date of this earnings call to conform these statements to actual results or to changes in the company's expectations. More information about other risks that may impact the company's business are set forth in the Risk Factors section of the company's reports on file with the SEC, including the company's annual report on Form 10-K for the year ended December 31, 2020. Also, with the exception of revenue, all financials discussed today are on a non-GAAP basis, unless specifically noted otherwise. Non-GAAP financial measures are not intended to be considered in isolation or as a substitute for results prepared in accordance with GAAP. A reconciliation between our GAAP and non-GAAP measures, as well as a discussion of why we present non-GAAP financial measures are included in our earnings press release that is available on our website. Before moving to the financial results, I'd like to announce that AOI management will virtually participate at the Needham Networking Security and Communications Conference on November 16, The Raymond James Technology Investor Conference on December 6 to 8, and the D.A. Davidson Semicap, Laser and Optical Conference on December 15. We hope to have the opportunity to interact with many of you virtually. Additionally, I’d like to note that the date of our fourth quarter and full year 2021 earnings call is currently scheduled for February 3, 2022.

Thank you, Lindsay. Thank you for joining our call today. The third quarter played out largely as we anticipated. We delivered inline revenue and gross margin that met our expectations. During the quarter, we continued to see strong demand in the CATV market and improving conditions in the data center and telecom markets. However, as we anticipated, our revenue in the third quarter was adversely impacted by approximately $3 million as a result of a well-known global component shortage. Our Q3 gross margin came in at the low end of our expectations, primarily due to an unfavorable product mix in our CATV segment and increased costs from component shortages. We achieved total revenue for the third quarter of $53.3 million, which is a decrease of 30.5% compared to the same quarter in 2020 and down 1.7% sequentially. Total revenue in our CATV segment of $23.1 million was up 98.4% year-over-year, though it was down from a record $27.6 million in the second quarter of 2021. The overall CATV demand environment remains strong, and we continue to gain traction with a number of offers. Total revenue from our data centers was $23.9 million, which reflects a decrease of 56.8% year-over-year but an increase of 6.9% sequentially. During the third quarter, we continued to see variability among customers. One of the design wins in the quarter was a new design win with an existing customer that supplies network equipment for enterprise and hyperscale data center markets. Additionally, we secured design wins related to 25G PON with a large multinational network equipment manufacturer focusing on the telecom market. Now turning to our telecom segment, revenue was $5.1 million, which is down 42% year-over-year but up 54.5% sequentially. Looking ahead, we do expect quarter-to-quarter variability as the timing and cadence of the 5G rollout in China remains somewhat opaque. With that, I'll turn the call over to Stefan to review the details of our Q3 performance and outlook for Q4.

Thank you, Thompson. As Thompson mentioned, the third quarter played out largely as we expected, and we delivered revenue and gross margin in line with our expectations and a narrower non-GAAP net loss relative to our expectations due to slightly lower than expected operating expenses. During the quarter, we continued to see strong demand in the CATV market and improving conditions in the data center and telecom markets. However, as we anticipated, our results were adversely impacted by approximately $3 million due to well-known component shortages and supply chain disruptions. Our Q3 gross margin came in at the low end of our expectations, primarily due to an unfavorable product mix in our CATV segment and increased costs from component shortages. While we were able to mitigate some of these anticipated impacts, we saw additional component shortages later in the quarter due to shutdowns in Vietnam. As we work to improve our supply chain, we may continue to have longer than usual backlogs for several quarters. Looking ahead, we expect the component shortages could adversely affect our fourth quarter by approximately $2 million to $3 million, and we also expect increased costs associated with the shortages to persist through Q4. Turning to our quarterly performance, we secured nine new design wins among seven customers. Of the nine design wins, four were with data center customers, two were with telecom customers, two were with FTTH customers, and one was with a CATV customer. One of these design wins was for a new 400G transceiver with a network equipment manufacturer supplying enterprise and hyperscale data center customers. All design wins in Q3 were with existing customers of AOI, representing deeper penetration within our existing customer base. Total third-quarter revenue of $53.3 million decreased 30.5% compared to the third quarter last year, and was down 1.7% sequentially. Our Q3 revenue was in line with our guidance range of $51 million to $56 million. In the third quarter, 45% of our revenue was from our data center products, 43% from CATV products, with the remaining 12% from FTTH telecom and others. In our CATV product segment, the overall demand environment remains very strong as MSOs, particularly in North America, continue to upgrade their networks. We generated revenue of $23.1 million in Q3, up 98.4% from $11.6 million in Q3 of the prior year, and down 16.3% sequentially from record results in Q2 '21 due largely to the component shortages and reduced sales of certain node transmitter products as inventory rebuilding for these products has largely been completed by one of our customers. Notably in early October, we presented at the Society for Cable Telecommunications Engineers or SCTE Expo, and commentary from customers continues to be positive. Looking ahead, we have good visibility with CATV orders well into next year, and we continue to believe that our technologies will play a key part in MSOs upgrade plans over the next several quarters. In the quarter, we began to see an increase in orders associated with high split upgrades, which several MSOs are using to increase CATV network bandwidth. Our amplifier products and some of our node products are used in these high split networks, and we are seeing particular order strength in this area. Our Q3 data center revenue came in at $23.9 million compared to $55.3 million in the third quarter of the prior year. In the third quarter, 36% of our data center revenue was from our 40G transceiver products, and 57% was from our 100G products. However, we are seeing some supply constraints that are beginning to impact other parts of the 400G ecosystem, which may in turn impact the timing of the 400G rollout, limiting the extent of the sequential growth we can see in the second half of this year. Now, turning to our telecom segment, revenue from our telecom products of $5.1 million increased 54.5% sequentially but declined 42% compared to $8.9 million in Q3 of the prior year. While we are pleased to deliver sequential growth in this segment during the third quarter, we see market conditions in the China telecom market as continuing to be lumpy, with the timing and cadence of the 5G rollout remaining somewhat opaque. Looking ahead, we do expect quarter-to-quarter variability until the pace of 5G rollouts in China becomes more predictable. We are excited about the design wins in 25G PON that I mentioned earlier, as over time, this will provide an additional growth driver to our FTTH revenue. For the third quarter, our top 10 customers represented 86% of revenue, up from 84.9% in Q3 of the prior year. We had two customers contributing 10% or more to total revenue in the third quarter, one from the CATV market and one from the data center market, contributing 29.4% and 15.5% of total revenue, respectively. In Q3, we generated a non-GAAP gross margin of 19.9%, which is at the low end of our guidance range of 19.5% to 21.5% and was down from 25% in Q2 of 2021 and 27.4% in Q3 of 2020. Total non-GAAP operating expenses in the third quarter were $19.3 million, or 36.3% of revenue, compared with $22.3 million, or 29.1% of revenue in Q3 of the prior year. The reduction in operating expenses is due to a decrease in R&D spend, and costs associated with our 400G development have begun to subside, along with decreased shipping expenses due to lower shipments to one of our customers. Non-GAAP operating loss in the third quarter was $8.7 million, compared to an operating loss of $1.3 million in Q3 in the prior year. GAAP net loss for Q3 was $15.8 million, or lost $0.58 per basic share, compared with a GAAP net loss of $9.6 million, or a loss of $0.42 per basic share in Q3 of 2020. On a non-GAAP basis, the net loss for Q3 was $5.3 million, or a loss of $0.20 per basic share, which was better than our guidance range of a loss of $6.9 million to $9 million, or loss in the range of $0.25 to $0.33 per basic share due to lower operating expenses and forecasts. The basic shares outstanding used for computing the net loss in Q3 were 27.1 million. Turning now to the balance sheet. We ended the third quarter with $48.9 million in total cash, cash equivalents, short-term investments, and restricted cash. This compares with $50.5 million at the end of the second quarter. As of September 30, we had $94.5 million in inventory compared to $100.4 million at the end of Q2. The inventory decreased primarily due to utilization of inventory for customer orders. This reduction in inventory is consistent with our long-term plan as we focused on rationalizing inventory levels. We made a total of $3.8 million in capital investments in the third quarter, including $3.4 million in production equipment and machinery, and an immaterial amount on construction and building improvements. We now expect 2021 CapEx will be approximately $15 million. As we disclosed in February of this year, we initiated a new at-the-market offering. To date, we have raised $1 million under this new program, including $0.1 million raised in Q3. We intend to use these proceeds to continue making investments in the business, including new equipment and machinery for production and research and development use. Moving now to our Q4 outlook. We expect Q4 revenue to be between $51 million and $55 million, and non-GAAP gross margin to be in the range of 18.5% to 20%. Non-GAAP net loss is expected to be in the range of $5.5 million to $6.6 million and non-GAAP loss per basic share between $0.20 and $0.24 using a weighted average basic share count of approximately 27.4 million shares.

And the first question comes from Simon Leopold with Raymond James.

Thank you for taking my question. This is Mauricio for Simon today. Stefan, can you give us an update on your traction with your 400-gig opportunity? I think you previously disclosed expectation for 400-gig to ramp in the third quarter and become more meaningful in the fourth quarter? Maybe you can elaborate on the 400-gig inflation this quarter and how should we think about the opportunity going forward?

Yes, so as we noted in our prepared remarks, what we've seen is that one of our early customers who qualified our 400G products seems to be experiencing some component shortages in other parts of the 400G network. This is not due to AOI's inability to supply those optical products; rather, they are facing shortages for some other components, which is making it difficult for them to ramp their 400G efforts as quickly as they would like. So, as we noted in our prepared remarks, we continue to expect to see growth overall in the data center market, but the 400G rollout may be delayed pending how long this supply disruption lasts.

I would like to hand the floor to Dr. Thompson Lin for any closing comments.

Okay. Thank you for joining us today. We want to thank our investors, customers, and employees for your continued support and we look forward to seeing many of you virtually in all upcoming investment conferences.

Thank you. The conference is now concluded. Thank you for attending today's presentation. You may now disconnect your lines.